I think Sony has a different perception of the word "unannounced". Sometimes they word things in a different way to seem more abundant in games. Like the 11 or so games from last year that was mostly PSN games.
So i think 1 of those unannounced games is the localized version of Vesperia for the West (since that has yet to be announced) And the other would possibly be SO4 for PS3, or a PSN game.