Dude. Carousel Theater, for starters. Pizza Port? Used to be an attraction. Captain EO theater? Further waste of space. Combine that with the whole Space Mountain concourse area. Get rid of it. Reroute the entrance to Space and make it less of a gigantic waste of space. The Autopia does have a gigantic queue building from the redo, but that could be removed and you could actually move the entrance to Fantasyland. That frees up even more space around the Carousel Theater. You can fit like a crapload of attractions with the feetprint of gigantic perennial favorites such as Space Mountain and the Matterhorn in those spaces. You can also build up. It's Tomorrowland. We have high-rises in the future.