I don't understand why Toriyama didn't just design him with a nose. Him lacking one makes no sense and adds to nothing in the story (aside from when he beat Bacterian, but he could've just held his breath or something). There are even some scenes where he's shown to somehow be able to smell...
I don't see the point in Xenoverse 3. It probably won't play much differently than Xenoverse 2, which didn't play that differently to Xenoverse 1. They can just spam more DLC for Xenoverse 2.