Personally
There is one clip when you dive into the DeathStar that has a really bad transition, i would like that to be tidied up, and that annoying bloody Robot needs to be melted down, maybe if he wasn't so Whiney.
I would like it if they kept the theme but had a random departure. I.E. One time you depart for Endor, maybe another time you fly to Coruscant, Naboo, Kashyyyk, Tatooine ect. They could keep it a secret until your boarding announcement. And they could add new locations to the mix much as they have updated TOT, just as the lines start to drop, bang new intrest again.
Nowadays the cost of this could be managed, they dont have to build new sets and props, they just have to make a new CGI movie, costly yes, but managable.
They could even release a new departure each year at Star Wars Weekend make it an annual event.
Star Wars is a Massive franchise, theres enough material there for them to add a whole area to the park. How cool would it be to take Jedi or Sith training?