Space Dragon raid? Maybe some kind of mechanic involving having to boost sparrows up a ramp into the air to DPS the boss? It's always been something in the game, and just like Rise of Iron fleshed out the Gjally and Iron Banner, an Ahamkara story ark could flesh out all those exotic pieces (e.g. Skull of the Dire Ahamkara). I was just thinking it would be a great opportunity for huge open spaces and verticality. Aren't the warlocks also affiliated with the hunt for the Ahamkara? We could finally see some funky-looking warlock armor that doesn't look so much like the standard robe-y dress that you usually find.