While I agree that the parks cannot be allowed to stagnate, I also think it would be a mistake to overbuild just for the sake of having something new every year. That's when you get cheap, cookie-cutter attractions. Right now there are more things to do at the WDW resort than has ever been there before. What they need to do now is spend their resources on putting the attractions that are there in as good a shape as is possible. Quality over quantity.