Well, one other benefit of transitioning it to Fantasyland... that part of the layout goes so darn well with the MBC layout.
If they want to keep Autopia beyond 2010, they could really make it something spectacular, the way the shooting gallery aspect turns a C ticket omnimover concept into practically an A ticket with Buzz. Maybe new modern vehicles? Maybe a richly-themed environment to travel through? Maybe a dramatic nightime "transformation" like Rockit Mountain?
I think that's one thing most if not all of us can agree on. Even if you think it's good now, certainly it could be better, right?