Thank you for your interest immortalfrieza. Sorry I haven't responded sooner. I don't often get online these days. Your response really made my day. I'm glad it had the desired impact and sparked some curiosity. Also, it was highly condensed hehe, good catch on that. I'll elaborate some more for sure!
The galaxy is in pretty good hands, in the form of Luke and his intentions. However, I think the intentions of the old guard are still hardcore and play out much the same way, even at the direct opposition to standing orders from Emperor Luke. The Tarkin doctrine was abolished but those who thought like him were not killed off. Vader counseled against such a purge as it would likely have caused a civil war. Luke was also forced to retain the Moffs as well, for a long period of time, in order to avert civil war, which he saw as the greater of the evil between that and continued old Empire policies. His only course of action was to breed a new type of Imperial Navy Officer and essentially wait for them to permeate the system. To attain this goal Luke and Vader would go through the old Republic officers (that had been incorporated in to the Palpatine's Empire) but had a history of being left behind in promotions due to their hesitation or open opposition to hard handed tactics. Captain Needa is an example that people would be familiar with. Rather than seeing Vader remove a thorn in his side during the pursuit of the Falcon (in Empire Strikes Back), Vader instead sees the value in a principled officer that stands on self-reliance as well as bygone codes of honor. Needa, and officers like him, are placed in charge of the reformed Imperial Academy. This method is more subtle, not unnoticed, but better able to fully subvert control while avoiding all out civil war. The new Empire starts to emerge with officers and leaders that serve Luke out of loyalty to the cause and the throne by choice, not by fear and intimidation. This also means that the new crop of officers are more capable, faster on their feet, and able to respond to unknowns more immediately, they are not yes-men. It also decentralizes absolute authority in the form of Emperor Luke himself, but the risk is outweighed by the potential wealth to be found in loyal and self-determined officers.
* Vader privately to Luke: "For as long as you have been alive I have forced men to my will. I bent them. I broke them. I crushed them under heel and made cowards of the rest." Vader turns from Luke, his glossy and unreadable mask looking upon a window of stars. "I may again... I must on your behalf, my son." Vader turns back to Luke. "Yet you can change that Luke. You have shown in me an insight that I have not recalled since before you born." Vader stands up taller, his voice becoming sharp and clear. "I once admired a Jedi Knight, long ago... he is only a memory now, and he was instructor to Obi-Wan Kenobi, teaching him in the ways of the force. I knew this man for only a short time, yet the force was his ally. He taught me that you cannot force people to be just and decent. Such qualities arise from within. That people cannot be forced from without." Vader turns back to the window, his silhouette faint on the glass. "I had forgotten this teaching, yet I have seen this wisdom through you. They are words I cannot teach myself. I am not a fit vessel that can deliver this lesson.
The patient method used by Luke would not be enough for the majority of Rebel cells, in my estimation. Not only would they question the authority of a new (as they would see it) tyrant emperor, but they are also the Alliance to Restore the Republic and a new Skywalker Empire would not be something the majority of Rebel leaders would agree to. The cessation of much of the atrocities of the Tarkin doctrine would probably only encourage some cells, seeing it as a victory, even while others recognize it for what it is. However, those like the Saw Gerrera types or other hardened troops that were in it as much for revenge as for liberation, would stymie peace talks. The same would be true on Luke's side. Peace is at an all time low price, but both sides have reasons to keep it going, if not at the top level, then somewhere down the line. This would cause talks to break down after a ceasefire or truce was sabotaged by a dastardly captain of a Star Destroyer or a rebel cell leader using the opportunity of a stand down to take advantage of lax patrolling within the Empire. Whatever the event it would cause upheaval for the players at the peace summits. If they oppose their own side breaking the agreed truce then they lose support from within, causing a potential fracture. If they condone it, they push the negotiations in to dire straights. If they do nothing, it only gets worse. Both sides might long for peace, but finding it may mean too much compromise, which in itself might lead to yet more conflict.
This is all in the shadows as things progress, but I think that it is worth mentioning that the Rebels would not be able to make the correct judgement on Luke's intentions. All they know for certain is that he was a pilot that flew his X-Wing at the battle of Yavin and avoided killing his father, who then went on to team up and take down the Emperor, and then take the throne, for himself. Almost anyone would have a hard time discerning the truth in this scenario. His actions might showcase his good faith, and his personal interactions with rebel leaders might even be enough to convince them of the truth, but in the end there would be a real struggle in this regards. (I am not certain Vader being revealed as a Skywalker would necessarily have happened, but I am playing the campaign as though it was. It would definitely help solidify him as legitimate to established Empire officials). For instance, Luke's support and counsel from Darth Vader, a mass murderer and fanatical dark lord would probably be too much to stomach, even for devotees to peace at all costs. In the end, the Rebellion might have a harder time recruiting, but many established cells would likely be far from giving up the fight.
All that and I still didn't answer your question. The player characters themselves have not even taken their roles yet. I use a personalized form of character creation that gives the players randomly allocated origins. They have complete control over their character's race, motivations and skill development, but their origins are outside their control. For instance, I once had a character roll a slave that went on to become a wealthy pirate who preyed on Hutt shipping and had fence contacts within the Empire. This is all during creation. So even I don't know what roles they will fill. Jedi characters are exceptionally rare, however, it is possible. The only rules I have in origins and careers is that players cannot be on opposing sides. This is too impossible to play out in a game session and ultimately pointless, unless as a turning point towards the end of a long campaign and climax to the story.
You are right on spot that fighting the Empire could potentially make things a lot worse. However, I am keeping Luke's ultimate opinions to himself (unless they read this board which is unlikely). I will not be explaining the intentions of Luke to the players. Whatever type of player they roll, they only know for certain is that Luke joined with Vader and overthrew Palpatine. The above several paragraphs is the morass that the characters will be thrown in to.
The first thing that should be noted about my new galaxy, is that Mon-Cala, or Dac, has declared itself neutral in (what it calls) an Imperial civil war. The announcement is extremely risky, as it is obvious to everyone that the Mon Cals have declared independence from the Empire and the statement of neutrality in the civil war is nothing more than a ploy for the new Emperor to save face as Mon Calamari exits the yoke of Imperial dominance. The Mon Cals feel that their planet can be defended as a focal point of a new and growing separatist faction at this early point based on signs that Luke may not be a genocidal tyrant. They are unaware that a second death star is under construction and Luke is forced to deal with this as his first real threat to galactic peace. He has little negotiating power, however, other than force, and the Rebels who know him are spearheading the declaration, including his sister, Princess Leia.
Luke is pressured with immense stress in to declaring all out war against the Calamari by Imperial Moffs, angered at the threat a free world like Dac could cause on a galactic level. The political side effects of either course of action are very apparent to Luke. But it is Vader who supplies the alternative. He recalls a teaching from old Jedi Master Plo Koon; "You cannot make peace with someone who does not want it. You must find out what they want and be prepared to give it to them." Luke immediately moves against Mon Cal and the growing concern within his own empire, but by political means. He grants Mon Calamari a provisional dispensation to somewhat restore its monarchy. However, he gives the land holding to his sister, Princess Leia Organna, formerly of Alderaan, to hold the seat of the monarchy until such a time that the Mon Calamari and the Quarren can decide who will be their monarch. Leia is effectively dealt with as she is immediately taken up with petitions and claims upon the monarchy. She is also awarded an Imperial Star Destroyer, and accompanying Stormtrooper detachment, as a personal bodyguard, under the command of a hand picked Captain by none other than Vader himself.
At once the old guard imperials see this as a power move long being orchestrated. They see the potential for a plan decades in the making, with the power of the Skywalker family having supplanted both the Rebellion and the Empire together (to their minds anyway). The Rebels piece together a similar potential scenario, but are in a stalemate, as almost all of their hopes and dreams have come true, but their trust in Leia is brought in to question as the pieces fall o-so-perfectly in to place. Despite her sincerity she is only mildly successful in persuading others that she had no foreknowledge of the move.
Also, I got to run for the day.
I hope everyone liked it. I am barely scratching the surface here for what I have prepared for the campaign. If anyone wants any specifics about something let me know. I just don't promise I can respond right away, as I barely use the old PC.
If you got this far thanks for reading! Tell me what you think? If you thought I was wrong let me know why. My players are not starting for another week, and I can make spot changes easy enough.