While it probably won't happen, I'd love it if Dante got some of the missing DMC3 moves back at the very least. It would be far easier to do than giving him new weapons/styles, but it probably still won't happen. Gotta focus on refining the new characters, rather than work on the existing too much.I do still hope they give us some amount of new content for Nero and Dante to play with though.
I have faith in Itsuno.