So
@Marni1971 and a few others are saying the painting of the show building is more to get ride of the studio theme than anything and to "make it more grand avenue". The Stage One store within the land, which is one of the only remaining parts of the park that is themed to a soundstage or being "behind the scenes" on the inside, is also rumored to get a facelift, similar to how Tatooine Traders did.
Says there's no plans on removing IP, but of course by making the area so generic, it does make it much easier to remove the IP overnight if they ever decide the time has come.