Underworld franchise.

Vampires vs Warewolves.

At the start of the game u can chose to be a vamp or a wwolf, just like in transformers or xfiles pinny where u chose to be a certain character.
Even a unlicenced version with cartoon character art would be great. You shoot the ball and the audio gives out a giant warewolf howl. excellent.

or

anything zombie/walking dead etc.

Hope Stern does a unlicenced theme ?  I guess it just gets down to what licences they currently have in the works ?