We’ve had several bosses get killed and return in some manner, Rag(elemental don’t die unless in their own plane), Naxx(undead), Ony(put back together), Kael(a setback), Illidan(retcon), the list can go on. Now some have died and are gone saw the light etc., Arthas isn’t coming back unless part of his spirit is trapped in the Helm or something, Garrosh was consumed by Draenor I think or given a proper funeral.
Deathwing, however, was in an elemental state when we “killed” him. He was blasted with the Dragonsoul and sucked into the Maelstrom.
He’s returned from near death before and reassembled.
He was in service to an Old God and essentially in an Old God raid.
There was NO collecting his head or his heart for a quest. Just the piece of his jaw left.
On top of all of that the Twilight Dragons were thought wiped out but appear in island expeditions.
So my question is... It looks like his master is getting out. His minions are showing up again. He has two children allied with the mortals. Will we see him again in some form or state?
SN: yes I know he will probably be part of the 15th anniversary raid if he is the mount.