Yes until they open up the RPG section this probably would be the best place for it all.
I've only ever played SW SE, I have a few of the other books but have only played the Saga.
Things I would want.
Fill in the gaps of the previous editions. Yes you need your core mechanics for your system. But if you want to gain a market share of from all the previous editions that is to fill in what is missing.
The following three are era of plays, heavy fluff and appeal in any RPG mechanic.
1. The Legacy Era is quite ripe with new stuff, especially after the last updates of Krayt/Cade etc.
2. Clone Wars also ripe to pick from as the majority of your younger players will know it best from the cartoon series. Yes many hardcore fans might groan a bit at the mention of the cartoon being canon, but we have to take into account FFG's need for a mass appeals.
3. KotoR and prior eras. How many of us would love to be part of the Hyperspace Wars when the Jedi were just founding or the Jedi/Sith Wars.
I found Saga lacking when it came to Space Station / Ship design. Yes you could modify anything and everything. But many things didn't make sense. Why is an Emplacement Point on a Cruiser taking up more cargo space than a Frigate? The mechanic made sense for ship-wide things like Shields or Engines, but on a singular item like a turbolaser it didn't mold well.
Trying to create a station from scratch is even more of a headache. I guess that was a result of not wanting a Stated out Deathstar. I ran across this recently when I wanted to create some defense stations for my groups world. I was using Golans to begin with, but I wanted to try to recreate something like the Mon Calmari ring except as a defensive ring vice a shipyard.
Other ship suggestion, on their stat blocks for cost, don't just put Illegal or Military only. Can we get three entries there? Something like this: Cost to Build / Market Price / Blackmarket Price.
Cost to build = How much it cost the company in materials to build (this would be huge to me in my current campaign as I started a ship building company)
Market Price = This is where you can tell us Unique, Military Only, and what it goes for on the open market.
Blackmarket Price = If I really really wanted, how many credits am I parting with to own that Star Destroyer.
That's just the start.