I was thinking while I was playing DMC 3: SE. I thinking of  crossover adventure game in the company of Capcom. For example for crossover, Namco X Capcom or something that deals with action adventure, fantasy shooter, and horror. The idea was is to have Resident Evil team team up with DMC Team to save the world from the zombies from Resident Evil and the demons and other creatures from DMC. I don't know who be evil bosses to take over the world from the heroes to stop them in this type of game but I know who will be working together.

Resident Evil Team: Jill, Leon, Chris, Rebecca, Claira, and Ada Wong.
DMC Team: Dante, Trish, Lucia, Necro, Lady, and Vergil(possiblity that he not going join up with them)

if you like the idea or want to say more suggestions about the idea please comment.