Just in from /Film [1], which is citing Italian movie site BadTaste [2]:

Our friends at the Italian movie website BadTaste have gotten their hands on a scan of the first official artwork from James Cameron’s upcoming sci-fi 3D epic Avatar. The artwork supposedly came direct from a 2009 Fox line-up.

Translated from Italian, here is the official plot synopsis:

The story of an injured ex-marine who finds himself involved (against his will) into men colonizing an alien planet. Finally, he chooses to change his battle array, leading the alien race in a battle for life.

4:42 p.m. update on Feb. 20, 2008: James Cameron has stated that the above image is fake. Read the comment below for more on this. [3]