While all three branches of the take are compatible, there are small discrepancies between the various books. Touching up a few of those and further accentuating the compatibility would be nice.
I haven't looked at the Asmodee reprints yet, so it could be that they've already done that.
Aside from that, release some newer material. There were a few things released for the most recent trilogy, but it was overall somewhat sparse. A few more adventures would be nice.
I do see that Asmodee has started to reprint some of the books that had been out of stock (such as the Gadgets and Gear book that consolidated lists of items from the the product lines). I didn't know that until looking it up before this reply.
Maybe try advertising the game a little better. I recently visited the Star Wars area of Disney. There were a lot of people there from a wide variety of ages, backgrounds, and identities. If I were to guess, the vast majority of them likely have no idea that a Star Wars ttrpg (or "board game" to some of them) exists.
