Hehe I don't consider Vergil the older brother, but thats just me. Anyways I agree with morrigan, I think Vergil should have his own game. But Devil Never Cry? Nah, that name sucks. It should just be another DMC, prohaps another prequel.
But I must ask, what are you talking about? This is the dmc4 forum and you're talking about the game is mainly about Vergil, when we're not even sure he's in the game.