That would be an expansion pack, Vital and Devil stars themselves are already DLC, they run at $10 in the beginning, and just like in game, the price goes up the more you buy. Also, if you die without a yellow orb, you have to buy another copy of the game.
I came here to chew bubblegum and kick ass, and I'm all out of bubblegum. http://d24w6bsrhbeh9d.cloudfront.net/photo/5062421_700b.jpg
Oh god, what am I supposed to do while carrying 11 weapons at once plus the newcomers?
Oh, that's easy. Dante does business with Capsule Corp. from Dragon ball Z. He just puts all of his weapons in a little capsule and shoves it in his pocket. That has to be it. I mean, think about it...he carries all these weapons, but never runs out of room. XD
Newer isn't always better. And I shall keep Dante's Force Edge polished and sharp till he comes back.