I suck at the numbers game. So i'll just say... "Very Well."
I think it'll benefit from a kind of "extended" launch period boost.
I mean PS3 really doesn't have any other good games in that Genre.
Sure it'll be too short but if all you've got is a PS3 it's going to be the best game like it for a while. Well unless you are a Dynasty Warriors/Gundam fan.
It'll likely end up selling a lot better then a lof of better PS3 games that will come out later in the Genre.
I'll say it breaks a million.