I think the things keeping American Adventure from a substantial update are:
- It's huge, so updates would be super-expensive. And I'm not sure they're convinced there's an ROI.
- No matter what you change, half the country would be upset.
Looking at Hall of Presidents, I mean, where does it go from here? What could Disney possibly do to it to make it an actual draw with guests while maintaining anything like its current narrative?
Or put another way: would you trade Hall of Presidents as it is, for a Muppets version of American history?