I wonder how many other games they have in Japan that are based on animes, a Love Hina one would be lots of fun ^^
Aside from that I would love to see a Disney version of Super Smash Bros, just so I could make them all kill each other
or perhaps something deep like a martial arts movie made into an RPG adventure, such as House Of Flying Daggers. I love those kind of films, I always wondered what it would feel like to have control over the characters and really be in the moment.