I agree. I know people don't like the IP invasion of Epcot (especially world showcase), but if it fits that particular country. Go for it.
As for Muppets. American Adventure is a total snoozefest & doesn't live up the title if "adventure", unless your type of adventure is a quick nap. I'm all for gutting it for a Sam Eagle led attraction, complete with Miss Piggy as Lady Liberty lol
Overall, the Muppets having a 2nd home at WDW wouldn't be a bad thing if done well. (Granted I'd still love The Great Muppet Movie Ride to join Muppetvision 3D)