We've finally gotten a look at what's coming in patch 8.3: Visions of N'zoth.
I fully expect Odyn to be a raid boss at some point in the future.
Some argue he is the weakest of the Old Gods.
Alongside his "brother" Odyn, Tyr struck down Ragnaros and led the charge in battle after battle against the spawn of the Old Gods. Tyr helped chain those colossal monstrosities deep within the world and served as Azeroth was shaped to shepherd her world-soul to maturity.
Both the Sundering and the Shattering were large-scale natural disasters for the shell that surrounds Azeroth’s world-soul.
Azeroth is special in the Warcraft cosmos -- it's unique in more ways than one, and so are its inhabitants.
They come from nothing.