The jump in attendance at USF should be astronomical for the first couple of years. FINALLY, the "ugly sister" park of USF will have its own glory. I am getting all hyped up about our upcoming trip from watching all of these videos.
As I posted in my trip report last year, Universal had changed so much in a short amount of time, even without Diagon Alley. Rip Ride Rockit, Transformers, Simpsons, Despicable Me, Cinematic Spectacular, etc... it was already on its way to being even with IOA with regards to premier attractions.