I think adding Avatar to the parks is a terrible idea. It was a knee jerk reaction by Disney to compete with Universals Harry Potter and net some media attention from their frenzy. I'll breakdown the initial board meeting for you...
Disney Exec 1 - "Holy Jeez, that Harry Potter park sure is something! Universal has people lined up for miles!"
Disney Exec 2 - "We need something big to announce ourselves. Something that will bring in people who like movies. If only we had a theme park dedicated to films, or perhaps a company that produces movies, then we would really be in business!"
Disney Exec 1 - "Sir, we already have both of those things, not to mention over 80 years of our own characters and films."
Disney Exec 2 - "What kinds of movies do kids these days like? What about The Matrix, people like those movies. Or Titanic, that was a popular one. That one with the big blue people, what was that called again?"
Disney Exec 1 - "You mean Avatar sir?"
Disney Exec 2 - "Yes, that's the one! My granddaughter loves that movie."
Disney Exec 1 - "Sir don't you think its a bad idea to sink millions of dollars into a park that is based on a movie whose sole success was driven by CGI technology? I mean wont that seem like a bad idea 15 years from now when those graphics look dated and silly and the movie has no real story to fall back on? Won't people who visit the parks at that time just vaguely remember that movie at best?"
Disney Exec 2 - "Too late, I already called the press conference."