Any thoughts or theories on this?

Here is what I have:
1) Migration from Deismaar. Scions seeking their own domains elsewhere.

2) All gods were destroyed in a cataclysm that spanned the whole world.

3) Deismaar was like a nuclear explosion with fallout that spanned the globe.

4) No other continents have bloodlines outside of migrating scions trying to make a domain for themselves. (would this pose any problems and would other lands and cultures have some kind of new quirks yet unheard of that give challenge to bloodlines?)

5) Are bloodlines granted? Could deities elsewhere give their followers bloodlines? This would weaken the cataclysm uniqueness but it could also be a reaction to that cataclysm by other gods to protect and strengthen their followers.

6) Taking the lands choice to other distant places. Was there so much energy at Deismaar by the death of the gods that most of it was absorbed by the world itself and thereby distributed everywhere thus bloodlines were created all around the world at that moment? (hmm I like this one, it just came to me)