"I'm not going to say exactly how we’re bringing him back, but it's a science fiction story, after all. His character will evolve into really unexpected places across the arc of our new three-film saga. I really look forward to working with such a gifted actor, who's also become a good friend."
The three "Avatar" sequels will be filmed simultaneously with production beginning in 2014. The release of the first sequel will be in December 2016, with the second to follow in December 2017, and the third a year later. "Avatar" 2, 3, and 4 will be produced by James Cameron and Jon Landau through their Lightstorm Entertainment banner. Like the original film, Lightstorm will work with Joe Letteri and his team at WETA Digital to realize the worlds of the sequels.
Official Website: http://www.avatarmovie.com/