Is it possible to Turn Diadem into a zone instead of instance?

[Isala]

Ok, but what about farming mobs? Can't solo that unless they watered them down...which would basically be no different to the open world mobs we got now.

It takes a bit, but WAR can solo them just fine without external heals. So long as you pick mobs that love to spam conal AoEs, you're barely getting hit.