They keep tweaking the spec so much I believe this could also be changed.
If they wanted to, they could use the Sarkareth models for it—they could just recolor them. Sarkareth literally gets beefier as the fight goes on, so they could recolor them to match a bronze-and-earth magic theme instead of Void. Alternatively, they could just give us what someone suggested in the Reddit post instead. Either would be fine.
Reddit post:
I’m hoping Blizzard is saving that body option for an Old God/Black Dragonflight-themed Evoker tank specialization. My headcanon is that since the Black Dragonflight has always been the most susceptible to Old God corruption—and because Evokers were an experiment created by Neltharion—they could eventually learn to wield Old God powers without succumbing to corruption.
Sarkareth’s words—“Neltharion left something for us down there”—support this idea. While we haven’t uncovered it yet, it’s possible that Evokers simply need more time to develop the ability to harness this power safely. Neltharion was obsessed with control, always seeking ways to weaponize power while mitigating its risks. If he truly left something behind for the Dracthyr, it could be a means to channel the Old Gods’ influence without falling to their whispers—something even he failed to achieve.
This could be the perfect narrative justification for a Black/Old God Dragonflight-based tank spec—one that embraces shadowy, eldritch power while remaining uncorrupted, unlike Neltharion himself. Alternatively, it could involve Old God influence combined with the other dragonflights working together to keep corruption at bay.
A dragon tank spec makes too much sense for it to not be a thing.