(wow, I'm surprised this board isn't bleeping out certain words)
Anyways, maybe they decided not to use the Castlevania name because they were tired of the ESRB and patent offices leaking their games? Um, right.
It would certainly be cool if this did have some ties to the Castlevania universe, but it wouldn't make me go out and buy a PS3 like a game with "Castlevania" in its title would.
I still wish that we found out one day that Nanobreaker existed in the Castlevania universe, even though it's focus was completely different. I wish they let you play with that form-changing weapon in Curse of Darkness after you beat the game.