It was announced around 8 AM on Wednesday (Pacific Time) that James Cameron will begin work on the scripts for two Avatar sequels early next year and actual production will begin in late 2011.  Executives at 20th Century Fox expect to have the first one in theaters in December 2014 and the second in December 2015.  This relatively soon date for the second film is being expected because Cameron has expressed the possibility that he may pull what Disney Studios did with Pirates of the Caribbean and film both movies simultaneously.