EmeraldRafael's Gamer Tell quote and Azure-Supernova's first quote pretty much sums up the argument for me. I've loved the Devil May Cry series for quite a bit now, and seen it go through enough stuff to make me want to put my controller through a wall that actually turned out okay in the end, even if it's not the way I would've taken the series. But I'm not - it's a new team, new lead designer, new vision. Let them tell the DMC story the way they see fit. I doubt Capcom's just gonna give some new guy a beloved game franchise and completely trash it.
If it is, in fact, the Dante we all know and love but younger, that explains a lot of his personality changes. When I was young I had messy hair and smoked cigarettes while trying to figure out my place in the world, and I didn't even have demon powers. Dante does and did. Seeing Dante in his own "rebellious youth" phase would be amazing, seeing how he might go from a Nero type of kid to who he is today.
As for the looking like the lead designer controversy...well...I've got nothing there.