by looking at your character it appears You are a Void elf player but use the natural skins? sooo in a way the natural skins benefit your void elf. Similar to how introduction of White and Black hair also made Void elf fans happy. So if they do seperate them, you would lose the skin color you are using right now and the Black/white hairs too, which would anger void elf players if anything.
But anyway I doubt Blizzard would seperate them, and according to a blue it appears they are thinking about adding voidy stuff for some “Oomph” as they described it.