Originally Posted by American Maid
Regarding #2, I did not mean to suggest someone else was claiming to be the God of Thunder. What I meant to convey is that maybe someone else becomes king of Asgard after Odin (as Balder did in the Simonson run) and takes the oath without making reference to his (the speaker's) identity. But perhaps further the author of the original Italian site assumed it was Thor and wrote it up as "the God of Thunder takes the oath", when perhaps actually the voice-over made no such claim. Perhaps the voice over just said "I swear to guard all the Nine Realms and preserve the peace etc".
Maybe while Thor is out and about someone has to step in as Regent, for example. Loki served as king for a period in the first film, although admittedly they didn't go through the formality of oath-swearing.
Thinking waaaaaaaay too much.