Yeah, but considering Disney's MO I could easily see them adding a couple of minor attractions around the resort and creating a new "celebration" as supplements to the Monsters Inc coaster as a marketing plan against Potter. It won't work, but Disney will do it anyway. Crap marketing campaigns is all they're good at these days.
The official word I've recieved is that despite the preliminary work on Monsters Inc the ride itself is on hold indefinitely. Real money is not going to be spent until a greenlight is given from Burbank. With Tom Staggs looking to send thousands of employees out the door company wide no one expects that funding to be approved any time soon. My gut feeling is that this attraction is going to be the next Fire Mountain.