James Cameron's sequel to Avatar won't be making it's planned December 2017 release date, according to The Wrap. This comes just days after Star Wars: Episode VIII was moved from a summer to a December 17, 2017 debut, which put it in direction opposition to Avatar 2.
Cameron and 20th Century Fox announced three sequels to the record-breaking 2009 film Avatar, originally intended to come out in December of 2017, 2018 and 2019. The writer/director's plans are to film all three movies at one time a la Peter Jackson's TheHobbit trilogy, but as of yet the studio has set no filming date despite the original taking two years of post-production work.
Avatar currently holds the record for all-time top-grossing films globally with $2.8 billion, ahead of Titanic's $2.2b and Star Wars: The Force Awakens's current total of $1.9b.