Some more snippets from the Nintendo Power article...

- Maria unlocked through DS to Wii connectivity
- special move gauge that builds up to a move that is much like a “final smash”
- some sort of WFC interaction
- character models by Takeshi Obata (Death Note)
- Quote from Igarashi “I guess some fans may worry about the game quality, but I am confident that we can achieve a very high-quality game. I think that fans…will see that it stays true to the Castlevania series. Even though this is a fighting game I can guarantee that it will be fun.”

Thanks to Blissteria for the heads up!