There's an inherent problem with theming anything to "tomorrow" or "the future."
Namely, tomorrow comes and what you have is now outdated.
Add to that bad choices about fitting in with the theme:
- combustion cars are not "Tomorrow" or part of a "Future World" (Speedway and Test Track);
- Carousel of Progress is 80% "the past"
- Imagination is not part of a Future World
- the optimism of 50s retro-futurism is not represented by an Alien that kills you or one that burps on you or one that tells jokes
- an aerial hang-glide over present-day places is not a "Future World"
- a history of human communication is not a "Future World"
Since Future World is going bye-bye, maybe it's time to say good-bye to Tommorowland.