Actually Beast Castle will fit with Disney theming and compliment the ICON. HP does not fit nor does it compliment. UNI is better with this one and I am Glad Disney passed on it. Now I could not see HP being a very productive Land after about three years. Once all the Movies are finished, you know how kids are they will move on to something else. This attraction is not like the Star Wars theming that has stood the test of time for over 20 years. I feel no one will care to much about HP when the movies are over and Uni will once again be sadly looking at why is my parks attandance so low. Uni builds for the now and not for the long run.
Really for well over 30 years. Star Wars, A New Hope to some, was released in 1977, but the marketing machine began even before that. I'm not trying to quibble, but I just think people tend to forget how old Star Wars really is, and I think it drives your point home even more, and makes me feel old.
Star Wars also masterfully captured both young and adult audiences from the beginnings. Some of the original fans were 60 when it was released others 5. Harry isn't strictly kiddy fare, but it isn't as adult friendly as Star Wars.
The original movie has a real 70's cinema sensibility to it. Remember Lucas came from the same group of filmmakers that made The Godfather, MASH, Apocalypse Now, Mean Streets, and Last Picture Show. These were Lucas' collaborators and contemporaries. This all gives the originally trilogy and authenticity that HP just doesn't have.
The other advantage Star Wars has is the time between the two trilogies was so great that two separate generations became loyal fans. When you throw in the various cartoons, comic books, books, and games it has an insanely long shelf life. It is one of the few properties that kids see as cool, even really young kids, that dates back to their parents' time.
Having said that I don't think Harry will be just a flash in the pan. With all the books and movies this will be a steady draw for years to come. I would also bet that Rowling will relent and cash in on the property once her nostalgia wears off a bit.
Even if she doesn't want to write more books herself, she can sell the rights and let others explore the world. She has tons of options, she can let it go completely, retain final editorial rights, or just let others work in the world of HP with new characters, all of which would extend the shelf life. Either way HP will be drawing fans years down the road just like Peter Pan and Lion King.