I don't see any reason why IP can't be introduced, and exist in harmony with the original vision of Future World. In many ways, this could enhance that original vision. Kids are more likely, in my opinion, to pay attention, and learn from an attraction that has characters they are familiar with, and love.
Let's have some of those characters tackle Energy. The Ellen and Bill Nye ride was getting pretty stale, and dated, but the subject is certainly still very relevant. There is no reason why it couldn't be presented in a new way, using existing IP.