James Cameron gives update on "Avatar" sequels. While the first film took years to make, the director hopes to finish the sequels quicker to meet the deadline. "Avatar 2" is due December 2016, "Avatar 3" is scheduled for December 2017, and "Avatar 4" is planned for 2018, AceShowbiz said.

In an interview with RTL via Coming Soon, the helmer explains, "Because we've improved a lot of the software and the computer graphics tools, and we've been working very closely with Weta Digital down here in New Zealand developing a whole new suite of tools to speed up the process."

"We're still in the early stages. Right now we're developing the software. I'm writing the scripts. We're designing all the creatures and characters and the settings, and so on. So, I'm not actually directing yet, but I'm doing all the other creative processes that lead up to that... It's going very well."

He went on, "I think it's going to be spectacular. You'll see new worlds, new habitats, new cultures. The primary conflict between the human view kind of dominating nature and the Na'vi view of being integrated into nature is the same, but it manifests itself in very different ways."

The director, however, plays coy when asked about what to expect from the upcoming installments, "That's the great thing about Avatar, it's such a rich world, I can explore any theme or any idea that I want."

"Once you've got the characters that an audience loves, it's great to surprise them and make changes and turns that they don't expect. And you don't have to spend so much time of the movie setting up all that stuff, because the audience will remember from the previous film."

Of the cameras being used, Cameron says he's "looking at high frame rate. I'm studying that. I haven't made a final decision yet, whether the entire film will be made at high frame rate or parts of it. You know, we'll be shooting at a native resolution of probably 4K and so then there should be a lot of true 4K theaters by then as well."

Sam Worthington and Zoe Saldana are confirmed to reprise their respective lead roles as Jake Sully and Princess Neytiri. Stephen Lang will also return as the evil Marine Colonel Quaritch.