I think making them a customization of Void Elves isn’t really a great idea. I’d prefer Helves as an AR that basically just did what Nightborne did for the Nelves—take the Belf rig, change it’s posture, and give it new aesthetics. This way, Alliance players who like Helves for their Belf rigs could play Void Elves and Alliance players who liked Helves for their identity and aesthetics could play the new AR with an altered rig. This way Horde players couldn’t really complain (at least as much) about the Alliance just getting straight-up Blood Elves.