The cataclysm and the fracturing of the Earth that followed also meant the end of the ancient Gods in the world as we know it.
Yahweh and Ashara survived the destruction, but managed to trap themselves in one of the other worlds that were split off.
It is unknown for now what happened to them there, but they were unable to return. Likely, they spent the time since in stasis, if they are still alive.
After a quarter million years, this finally signified the end of the Anu’s direct meddling in the affairs of our world. The Anu were gone, and could not return. It was the final end of the Gods being present on Earth.