Question about old cod zombies lore

So as we know, the entire multiverse got banished to the dark aether in tag der toten, but here is my question:

1. Was the cycle broken in only one universe? Or has it happened it other universes too?

2. If only in one universe, then it means other universes are still continuing the cycle. Meaning other versions of primis and ultimis still exist. What happened to them?

3. What happened to mob of the dead crew? Everywhere I search they just say what happened up until blood of the dead; but what about after tag der toten? Are they gone? Can other versions of them exist in the new uncorrupted universe?

Sorry if I'm asking too many questions, I just don't understand some parts of the lore.