It's gonna be a cheap remaster than no one will care about. Either that, or a browser game.
I bet it's gonna be a remaster. Not that that is bad.
I somehow doubt its a remaster because that would be quite expensive to do. A lot of the environments would need to be completely reworked, and lets not forget that Onimusha 1 - 3 uses the likenesses of real actors (one who has passed away).
Remasters would be cool though, for preservation purposes. But I think its a new game.
In fact, lets go a step into bizarro land: the medieval Deep Down has gotten a face lift into feudal Japan. Co-op Onimusha incoming!!!!