You can bank on there being a sequel for Avatar, but don't bet on James Cameron directing it. He's said that he always intended the movie to be the first in a franchise, but has other projects he'd like to do before going back to the Avatar universe.

Maybe he'll start helping imperilled natives here on Earth. An Indian tribe has approached the director to aid their cause as they believe their plight resembles that of the aliens in Avatar.

Somehow I doubt he's going to be going that route, but he has been making public pronouncements about the U.S. space program. The recent NASA cuts and the move to encourage more participation in space transport with private companies are the right direction, he believes.

Meanwhile, Avatards have been busily using Photoshop to paint people blue.