I picture that with the remake of DHS - the front of the park will remain a "Hollywood Land" - a fantasy version of Hollywood, and the Chinese Theater will be presenting the world premiere of the newest Mickey Mouse short - and your invited. Then, as you take your seats for the premiere, something will go horribly wrong (as is wont to do in these situations) and you will be sucked into the film. (I sort of picture this a live action version of "Get a Horse".)
I know a lot of people are upset about GMR going away, but I am excited that this could be some serious cutting edge projection mapping stuff. (Disney doesn't get a lot of credit for it, but the crazy realistic AAs that are part of Carsland / 7DMT / and Frozen EA all use projection mapping of the faces of the animated characters - wish actually make the characters more "true to life". The idea of projection mapping an entire ride seems like it could be really, really cool - sort of picture when Eddie Valiant goes into Toontown near the end of Roger Rabbit. (I might be a bit too high on this idea - hopefully it won't disappoint.)