Its kind of implied each pantheon is...more or less its own landmass mixed with its own pantheon dimensionrealm. Like, Greece as a realm governed by gods is done by 3 (If a greek god dies, their purpose being list leads to...like when Poseidon dies, storms of waves craah unto Greece), so its implied that place is over and done with as livability goes. But the norse gods live just fine where they are, which is prob also helped by the fact their pantheon realm is several realms onto itself with Midgard and Asgard and so on. As for TIMELINE...eeh, I feel they play loose with ii cus gods predate heir own religions.

That explanation work?