Are the Primals really Primals?

[Catapult]

Going along this same thought - I could see them going as far as having Ishgard summon something akin to the Knights of the Round at some point, non-elemental, representing themselves in a sense, in a sense still Holy or simply righteous. That fight, if it ever happened, would make the Mog King fight look like cake. lol

No, if there is one thing characteristic of Ishgardians, it is their devotion to Halone, the Fury. If the Archbishop of the Holy Sea ever sought to summon anything forth in their defence, it would be this warrior maiden associated with the first moon (astral ice) of the Eorzean Calendar.

I wonder who that could be?

I can't think of any event more fitting that leads to them opening their gates.