WDW should take all of Future World and hand it over to Bill Nye and Neil DeGrasse Tyson accompanied by Seth MacFarlane and the rest of the producers of the remake of Cosmos. These are people who know how to make science interesting, they're the ones who can create a vision of the future that is optimistic, realistic and fun. And then, for good measure, ask the nations involved in World Showcase to let Michael Palin & Terry Jones act as consultants to create more entertaining offerings. Palin's travel series are amongst the best and most entertaining ever produced and Jones is a well respected and captivating historian, AND they're Monty Python alum, they are men who can look at the nations of the world and their histories and their cultures and present each of them in fascinating ways that'll leave audiences hungry for more.
The biggest problem with Future World is that technology advances faster than it could have been imagined when EPCOT was built. As a result, WDW can create a brilliant captivating vision of the future, and by the time it's built, chunks of it already seem antiquated and obsolete. Think about your phone, aka that thing many of us use to read and write on these forums. Remember 30 years ago when only doctors, politicians and spies walked around with phones? They were roughly the size of a brick, except the powerful ones, THOSE came in a pouch, and Maxwell Smart's which came in his shoe. The idea that you could look up any nugget of information ever recorded, play games, listen to music, watch movies or tv shows, look at the people you were talking to? That was still science fiction. The phone I own now is faster, with a bigger memory and better display than my first computer 15 years ago. Trite phrase, but the future happens faster now. And it's hard for the physical world to keep up with it.