dante seems more like his cocky DMC1/anime self. not quit DMC2 brooding but no where near "i just drank some vodka and smokes some weed" DMC4 dante self either.
Like I said before, this is my favorite Dante, and it's this one that should have been in the
actual DMC2 instead of Mute Dante. Hopefully, a Dante like this will be in DMC5 or DmC2.
It most likely takes place after DMC2, because he went to hell/and or other alternate dimensions.
However, when he returned to Lucia, perhaps only a few days had taken place in that time span, because time could pass much more slowly in hell/alternate realities.