Do Nords even organise religion, let alone use scripute? Why wouldn't it drift?
You're all dinguses.
Cyrodill was conquered by Alcaire. Hence the ubiquity of sweetrolls and related psychological tests, an ancient Alcairien tradition.
That would explain why Imperials are such Breton wannabes, ripping off their pantheon, architecture and such. That would be a funny double retcon though. Good luck incorporating their supposed imitation of Summerset Isle.
You just gotta wonder what they're going to do once we arrive in the Summerset Isles. There's absolutely no way the Imperial deities everyone has come to know and love since Daggerfall will be able to be represented, even in a diminished "Imperial Cult" status.
Except the Imperial pantheon is partly based on the Elven one. What's more, Alexandre Simon says that Auriel is essentially Akatosh to High Elves. It would be rather odd for the more worldly divines like Kynareth to still be there.