Well, let's start with KotN. I have one and a half issues, one I'm here to fix and one that'll probably stay. The latter being that vanilla Oblivion catches flak for being good vs. evil yet KotN, in which infamous characters can't use the amror and the villain is pretty well Evil with a capital E, is only half an issue because let's face it, it's one of the rare occasions where unbridled evil makes sense in the TES context. Not to mention the well and uped quality of writing in general. The main issue I have I think you all may be able to help me with. Umaril atacks the chapels of the Nine Divines. Okay. Why? Was it because the Eight Divines religion was founded by the very queen who'se champion cast him down and so it is associated with his downfall or am I way off?
Umaril is probably pissed off that a champion of the Aedra defeated him and effectively dealt the blow that led to the long and absolute decline of the Ayleid Empire in Cyrodill. Also, as others have stated, he feels that the Aedra forsook the Ayleids in favor of humans, although the Ayleids forsook them first by allying with Daedra like Meridia.
A question I often pose is, could Umaril actually destroy the Aedra themselves? Wouldn't that destroy Mundus? Or would he perhaps simply destroy enough of their followers and shrines that they could no longer influence events very much? (Except Kynareth....nature itself is her domain and I doubt Umaril would go that far with the Ayleid affinity for birds and things). It's true that they can't manifest themselves on Nirn at all except in extremely unique situations because their bodies are quite literally dead. Their bones are the world. They are in a form of stasis befitting beings of sameness. Akatosh manifested himself, however it may have been an avatar and not his original body, and it took an extreme sacrifice. Also, a few of the Divines sent Avatars in human form in Morrowind.
The second is about Talos (the prophet reminded me). what is everyone's opinion of retroactive godhood? Particularly Tiber Septim, since blood spilled from his mortal body was enough to open the door to Camoran's Paradise. So, do you think that would have worked outside Oblivion, or not?
The way I understand things to be in the Elder Scrolls universe is that there are many paths to Godhood, but once somebody is a God that person was ALWAYS a god even if that person had a mortal history. It's complicated and somebody more knowledgeable than myself could explain it better. In some instances it's explained by dragon breaks but with some such as Arkay it's never explained at all in any detail.