Yeah, a few of us have already created Japanese profiles. As Phil said, there's nothing there that we haven't already got or seen. Maybe in the future, as you say, but I'm sure that anything the Japanese develop will also make it's way on to the Euro servers. Having said that, I'm going to make a US profile, too. Now I'm sure they'll have some tasty exclusives before us.
PS4, PS3, Xbox 360, Wii U