Well at least they explain what Dante (and Vergil) were doing throughout most of their lives, this also explains how Dante got his "I don't give two sh*ts" attitude in DMC3 and why he doesn't like demons. So, in a way, this game might actually ended up being a sort of, dare I say it, origin story for the franchise. I just hope they'll keep the white hair and somehow lead it up to DMC3, and I wish they loosened up his pants too.
I rather they dont as it should be its own thing,
Besides DMC3 was about Dante figuring out what he wanted to fight for which seems like ripe material for this game to discuss. I dont feel it would be a good idea to dodge the question just to leave it for another game.