Go James! Give us another good one! A show to remember!
I think there is a lot to be excited about here, lets look at the facts:
#A: He wrote all three scripts at once, so the chance of discontinuity is reduced somewhat.
#B: He had to remove a LOT of stuff from the first one becasue Hollywood was sure it was going to fail, therefore forcing him to make a movie that could stand on its own, thus why the story was a little archatypical (so yeah, what the naysayers complain about, was kind done on purpose because the people who backed Cameron were only interested in the technology,not the film)
#C: James Cameron made Terminator 2 and Aliens, so he seems to be well versed in making good sequels, or at the very least decent ones.
#D: He has created a massive, beautiful and stunning universe, so the bones of a great story are there
#E: Although the story may contain characters and settings from the first, i get the impression that he will be expanding the universe, exploring new characters and new ideas, you know, the way you make a good sequel.
#F: Even if the second and third movies blow harder than a Narwal, there is still the kick-ass first movie to watch.
#G: NOthing's over while he's breathin!
Still, i am not looking forward to the uncreative fucks who think they are funny, going on and on about "pocahontas in space' or 'dances with Na'vi',you know, the ones too dim to come up with thier own material, the ones who seem to take pleasure in ruining so many htings for other people. Ah well, they are a small price to pay for a return to Pandora.
Long story short, thank you mr. Cameron all i need to do is wait until 2014 until i can get my crack fix. I jsut hope they second and third go well, it would be a shame for the franchise that got me into writing to fail. Good luck and may Eywa bless this project.