A study showed Universal could fill 10.000 to 15.000 hotel rooms.
Universal is adding rides, restaurants and show. Jaws left to make way for 2 major rides, popular shops, restaurants and shows. The same as the original Potter did, it added 1 E-ticket ride on new land and many popular shops and restaurants. Just like Simpsons added a kiddy ride and added more richly themed rides. Even Transformers filled in a long forgotten empty lot with a huge ride.
Now Kong is being build on again new land that was unused and will be a huge ride. They added a parade and evening show.
They refreshed Hanna and Barbarra with Despicable Me, a ride still has a significant line.
On Citywalk they added minigolf (unused land) and new restaurants and updated tired old ones. They added bars and locations on the water side, again land formerly not used at all.
Btw I'm from The Netherlands and will buy a annual Universal Studios Resort pass because I stay for 2 months and will be back before the end of next year to use that card again, not going to Disney because there is nothing added that interests me or my family.
http://articles.orlandosentinel.com/2013-09-11/business/os-universal-to-add-thousands-of-hotel-rooms-20130911_1_universal-orlando-hotel-rooms-walt-disney-world