As you note, MK basically stole attendance from DHS and DAK. WDW attendance was up slightly for Q4. MK had record attendance for the year. WDW as a whole was essentially flat for the year, buoyed by South American attendance. (As was Universal's attendance.) Domestic attendance at WDW has been slowly declining for several years as price increases have far outpaced family income.
Financially, NFL is doing well; two new restaurants that are always 100% full. So full, in fact, that Disney felt comfortable raising prices at BOG by over 10% after being open only a few months.
Fantasyland now is, bar none, the place for families with small children to be. With a 36" roller coaster opening in 2014, it will become increasingly difficult for WDW to get those families to visit other parks for more than a few hours. Inevitably, families with small children spend half-days at the other parks and then want to return to Fantasyland. It's one of the reasons WDW is trying to discourage park hopping; MK is bursting at the seams while the other parks are becoming increasingly inefficient to operate.
NFL's success is hurting WDW other theme parks, especially DHS. It's why DAK needs Pandora. It's why DHS desperately needs Star Wars Land. With FP+, Epcot needs anything.