Avatar would make a good attraction, but not an entire section of AK. I enjoyed the movie, but I don't think it has the makings of a classic, like Indy or Star Wars.
Avatar didn't sell anywhere near the merchandise of other Disney movie turned attractions.
Looks like Disney is trying to bring in their own Harry Potter. Well Avatar is no Harry Potter.
An Avatar attraction at DHS would have been a great idea. An Avatar land at AK makes absolutely no sense.
They better not take away the Tree of Life and replace it with Hometree.