I'm not sure exactly what type of game this is. so far on amazon Japan, it seems that its not entirely a AAA game, its more of an AA game. i tend to trust amazon.jp.
so i'm not sure if i'm too concerned about this being exclusive to JP at the moment. i would like more info really, but i dont think a game like this would be successful here, its not like we're mising out on another Demon's Souls tbh.