James Cameron used his Reddit AMA on Saturday morning to update fans on the three planned Avatar sequels, saying he will have completed the scripts within six weeks. The first sequel is set to hit cinemas in December 2016, with Josh Friedman, Rick Jaffa, Amanda Silver and Shane Salerno previously announced Cameron's collaborators.

James CameronJames Cameron Is Shooting Avatar 2, 3, and 4 Simultaneously 

"The second, third and fourth films all go into production simultaneously," the director wrote in his Reddit AMA. "They're essentially all in preproduction now, because we are designing creatures, settings, and characters that span all three films. And we should be finished with all three scripts within the next, I would say, six weeks."

"The biggest pressure I feel right now is cutting out things I love to get the film down to a length that is affordable," Cameron added, "There hasn't been a problem finding new and wonderful things to include in the movie."

Sam Worthington, Zoe Saldana and Stephen Lang will reprise their roles in the sequel, though a recent rumor suggested Arnold Schwarzenegger could appear - something Cameron played down.

"I don't see a role as the scripts are coming together that would be appropriate for him, so I would say probably not," he said.

Elsewhere during the AMA, Cameron reiterated that a planned adaptation of Battle Angel is "on hold" until after the three Avatar films are completed.

Asked what he sees as the future of film, the filmmaker noted that he'd like to see less emphasis on mere spectacle: 

"In terms of storytelling, I'd like to see Hollywood embrace the caliber of writing in feature films that we're currently seeing in the series on television - more emphasis on character, and less on explosions and pyrotechnics," Cameron wrote. "And I'm talking the big tentpole movies, I think they're obnoxiously loud and fast."

It was a big weekend for AMA's, with Harrison Ford also talking part in a discussion on Reddit. The veteran actor revealed that he would be interested in being part of a Blade Runner sequel.

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