I remember that... sorta, but if they got that much ready and it's only 10%, and I figure it's mostly a port of a game with additional features, then getting the other 90% done in 5-7months isn't impossible.
I was thinking of a launch window release, and now it's confirmed that it won't be out before April 2011. I guess it still could be a Launch window game, depending on when the system is released, but I was hoping for some SSFIV 3D at launch, even if that launch was in March 2011.