We don't know a huge deal about the next Castlevania game, aside from the fact that it is definitely coming -- we have Koji Igarashi's word on that -- and that some screenshots that may or may not have been faked emerged in January, and looked rather ace.
Apart from that? Nothing. Zilch. Except that now, we might have a name, because Konami has filed a trademark registration with the USPTO for "Castlevania: Order of Ecclesia," along with the logo you see to the right. We're not getting too excited yet, however, especially as this could just be a sequel to last year's mobile title, Castlevania: Order of Shadows.