People keep mentioning Tron, but, I think they are all going to be highly disappointed. As has many have noted, the balance of MK is way off and the need for large volume rides is high. They are not going to plop down some huge monstrosity of a building right next to Space Mountain and diminish the theme. If anything, the E ticket ride so many want is likely (IMO) to be in Adventureland to balance out the park while tomorrowland gets a major refurb with more people eating attractions. The Speedway gets a refurb, even as much as Id be ok with it being gone, and TL is cleaned up. There are plenty of options for an Eride that would fit the adventureland theme and still be able to bring good attractions to TL and make it work.