Walt Disney World is no doubt expecting massive crowds this summer when Pandora: The World of AVATAR opens to the public.
Today, WDWNT posted a rumor that makes a ton of sense. Their sources are saying that Animal Kingdom will offer extra magic hours every night for most of the summer, or more specifically May 27th to July 4th. I would imagine that this will be in addition to the EMH hours at the other parks.
No confirmation on this rumor yet, but it would certainly help with the crowds.