Who knew the 6.15 Omega Quests… (Spoilers)

[Iscah]

What was said about the souls in zodiark from that interview was

[...]

Found from the posting here from the LL
https://forum.square-enix.com/ffxiv/...=1#post5861039

Thanks for the quote. From that you could speculate that currently Zodiark is fully powered by the sacrifices' corporeal aether while keeping their souls untouched, but eventually that supply would run out and then he would have to turn to using the souls as well. Hydaelyn just reached that point sooner because she started with less aether to work from.