I am by no means an expert on Japanese entertainment, but I do know there are tons of theme parks there. I know they are experts at target marketting too. I would like to go to Japan someday and take in the culture in Osaka.
What makes Disney stand out from all those places; like for example Harmonyland? What does it have that reminds you that you are in Japan?
This is all hypothetical of course, because I will have to wait until I am an adult to go to a Disney resort.