Stitch going away would be good, but I would've thought Monsters Inc. Laughing might would have been the first of the 2 things gone. Stitch has the futuristic monster from another planet going for for it, but Monsters Inc. Floor has nothing about the future even in Sci-fi way. I'm guessing Big Hero 6 at this point.
I mentioned Big Hero 6 because Tokyo Disneyland's Tomorrowland announced a Big Hero 6 attraction. I don't think it would be getting the musical whip ride for big Hero 6 like Tokyo is getting though. The other thing is Big Hero 6 is getting a cartoon series on Disney XD next year in 2017 and that means Disney means Disney isn't done using the IP.