(I thought I'd be post this topic on a new style of Castlevania before Saner eventually does)
There's two new forms of Castlevania that I've been wanting to come out for a long time now, one is a strategy rpg, and the other is a collectible card game (surprisingly, I hadn't really dreamed of a fighter game much, and certainly not a slot machine...).
The Castlevania universe is filled with so many elements in it that it could support a very large set of cards with many expansion sets. I would be very compelled to try to collect all the cards. I imagine all sorts of beautiful location cards, weapon cards, armor cards, spell cards, relic cards, monster cards, trap cards, boss cards, and character cards.
Unfortunately, I can't really imagine playing the game would be very fun. The goal of a Castlevania game should be to go location by location defeating monsters, gaining rewards, and ultimately defeating Dracula. But would it essentially be a race between two or more players? Would one player get to play as Dracula? It would be tough making a balanced game where one could in fact sometimes make it to Dracula and sometimes couldn't. But a creative card company could probably come up with a way to make it work, who knows?
Or maybe they should just stick to releasing a simple collectors card set or a 52 card deck. That's just not as fun as a CCG (even you are only interested in collecting the cards), but, whatever.