Avatar 2 or Na'vi ?

“I wouldn’t do that for the second film” Cameron said. “It’d be premature to turn it over to somebody else right now. I think I’d have to use a film to train somebody to be able to take the reins, honestly. That’s how I see it.”
Spoilers: James Cameron went on to say that the sequel will not be called “Avatar 2″ (as we all expected) since the first film ended with Jake (Sam Worthington) become an actual Na’vi. ( this might be a mistake since avatar is already known among us all and a very large amount of money went into publicity, becoming a giant name who took control of the Box Office.) “Certainly I don’t want to call it Avatar 2,” he said. “He’s not an avatar anymore, is he? Maybe we’ll call it Na’vi.”..

We know that Zoe Saldana and Sam Worthington have signed up for a trilogy – so I assume that we will see them in Avatar 2 movie. It is rumored that Giovanni Ribisi will return as Parker Selfridge, and Stephen Lang will return as Quaritch, (resurected ore cloned somehow – as you know he was killed in the end of Avatar).  In an interview, Lang says “It’s not over while I’ve still got DNA” strongly hinting towards a possible resurrection of Quaritch. Recently it has been confirmed that Joel David Moore will return as Norm Spellman. Also, at the Golden Globes, Sigourney Weaver (Ghostbusters III – 2011) hinted at the return of her character, Dr. Grace Augustine, in some form, saying, “If you look at the footage, I don’t really… I go somewhere, right? It’s science fiction. Anything can happen.”  The actress later confirmed that she and Cameron had agreed to bring Grace back, commenting, “I’m actually in the tree.