Eventually the vanity system will be out. And please correct me if I'm wrong but this will allow us to keep the looks of some gear with stats of another?
If this is the case I think it will be rather hard to fight if all your opponents are for example, all wearing underwear or scuba gear XD Especially when 8 vs 8 comes out etc.
If it is like that I suggest adding a small class icon on a selected enemy next to their name indicating their class, as it will be hard to distinguish.