I have a feeling that the end war is basically Yaweh's retirement party. With Abaddon ascending as an Aeon and taking Yaweh's place at the end of the war.
So what about the abyssal gate he was guarding as tathamet that corrupted him? it seems Yaweh is either dying or planning on handing over the reigns to Abaddon or something otherwise why would his wife put the spark in him? isn't Sheol inside Abaddon already? isn't he part aeon from that?
Honestly, I hope they won´t take it away as this would be the greatest breach of trust they were given by Abaddon, regardless of the consequences of Abaddon becoming self-aware.