Honestly, whether anyone loved it or hated The Last Jedi, I truly do believe that there is an excellent foundation for a campaign. The Resistance has been dealt a mighty blow, but it still has its leaders. The task now is to rebuild, rejuvenate supply lines and convince the galaxy that all hope is not lost. To that end, they are going to have to be willing to be a bit unconventional for a while, taking on whoever they can find willing to fight for the cause. Meanwhile, a new Supreme Leader rules the First Order. The First Order had always been tyrannical, but they at least had the virtue of stability. That stability is no more.
Meanwhile, rumors abound throughout the galaxy. The Jedi, Master Luke Skywalker and a new apprentice have returned, spurring on a new generation of awakenings in the Force throughout the galaxy. There are whispers and stories of new Force sensitives appearing…as are rumors of the Knight of Ren as bloody enforcers of the new Supreme Leader.
To me, this is very fertile ground. Enough change happened between Episodes 7 and 8 that you can tell a lot of stories about what happens between 8 and 9. Plenty of people dislike the prequels, but rather enjoy the Clone Wars series so why don’t we tell our own stories?