Okay…since Avatar was very welcomed in the movie theatres all over the world, Cameron announced that he will be presenting a prequel and probably a sequel to this movie.
Besides the sequel we will enjoy [some of us] an Avatar prequel…not a movie or a script but a novel.
Cameron will write an introduction to the Avatar world which will give more details about Jake Sully and Grace.
So, people who really fell in love with Pandora will just have to accept that all the other Avatar products will not bring them back to that paradise.
Of course we will see new places and fantastic worlds…but some will hope that those places will be as great as Pandora.
At this point anyone can grab their imagination and start writing Avatar fanfictions…