The highest grossing movie of all time (lets not start the inflation discussion) is not only getting a sequel but a whole batch of them. Speaking about the sequels James Cameron says”
“Building upon the world we created with Avatar has been a rare and incredibly rewarding experience. In writing the new films, I’ve come to realize that Avatar’s world, story and characters have become even richer than I anticipated, and it became apparent that two films would not be enough to capture everything I wanted to put on screen. And to help me continue to expand this universe, I’m pleased to bring aboard Amanda, Rick, Shane and Josh — all writers I’ve long admired – to join me in completing the films screenplays.”
The three movies will be filmed back to back with production beginning next year. The release of the first sequel will be in December 2016, and then December 2017, with the final sequel hitting in December 2018.