The problem I can potentially see with Nintendo is a desire to go to a theme park based upon it. Mario and many Nintendo characters are almost as familiar as Mickey Mouse. But, it doesn't have the story like HP or Star Wars, does. Story, IMO, makes a lovable IP. Countless people LOVE to play Mario Kart, Super Mario Bros., etc. But, do they love Mario (the character) in the same way they love Harry Potter or Luke Skywalker? Despite the familiarity, I can't imagine the demand for Nintendo being close to HP or SW. Disney's Avatar expansion and Nintendo, IMO, have countless similarities. Both, IMO, will be a success or failure based upon how well they are executed, not on the back of the IP.