When a fan asked if Dante’s look was final he got a response from one of Capcom’s reps over at the Capcom forums.
Christian Svennsson, (Corporate Officer and Vice-President of Strategic Planning & Business Development for Capcom) replied to the fan by saying
Echiro and Itsuma continue to make tweaks to the design (and to his face in particular), but they wanted to take Dante in this direction. That was their creative decision. I’m not sure there’s any quantifiable reason beyond that.
The fans of series have expressed their disinterest with the new Dante and it seems to be that that Capcom may be actually listening now.