Pact with Mankind
Akatosh and the other divines require the faith and belief of mortals in order to gain strength (not something I've read, other than in other people's comments, so need a source for this please) and so http://www.uesp.net/wiki/Lore:Alessia in order to free mankind from Ayleid slavery and protect their world from Oblivion, in exchange for becoming mankind's religion. The deal requires that a descendant of Alessia's bloodline (or someone with the blessing of the gods, and their subsequent bloodline?) be the ruler of the empire, and that they wear the amulet of kings.
Akatosh in Oblivion
So after around 4000 years of worship, when Martin is the only person with royal blood left alive, and the Daedric realm of Oblivion is invading, Akatosh only seems to save the world. I haven't played Oblivion's main quest (despite pouring hundreds of hours into the game :confused: ) so I'm not 100% sure on what occured. But is it possible that Akatosh convinced Martin to sacrifice himself and also destroy the amulet of kings, just to break all elements of the 4000 year old agreement to protect mankind? With no dragon-blood heir remaining, and with the amulet shattered, Akatosh is now free to return to the mortal realm (using the strength he has gained from 4000 years of worship) to lay waste to all creation and return to a timeless state? In other words, was the apparent act of good will by Akatosh in Oblivion, really just a means to an end for the god? Did he save mankind from one terror, just to bring about a bigger one in 200 years time?
Has he also tricked dragons into believing they are capable of achieving immortality? Taking their form, and telling them that by killing man (and possibly Lorkhan?) they will return with Akatosh to the divine forms that their ancestors held?
The Other Divines
In this case, how would the other 8 divines feel about this? The original 7 are presumably also pissed at Lorkhan for his trickery, so could they also feature prominently in Skyrim as enemies bent on mankind's destruction in order to regain their freedom? The Game Informer magazine mentions that Alduin is the chief villain after all, not necessarily the villain. What about the Ninth Divine, http://www.uesp.net/wiki/Lore:Wulfharth? With Lorkhan having a place in this religion, would people's faith also have strengthened him? And if so, could he therefore feature as a saviour in Skyrim, in a similar fashion to how Akatosh was the 'saviour' in Oblivion?
But this pretty much all hinges on the idea that faith and belief from man and mer strengthens the Aedra, which isn't something I've seen written in official lore, just seen mentioned by other forum members. I haven't read much lore, so if you could link me to something that confirms this I'd be really grateful!
Thoughts? I may well be completely wrong here! If so, I'd love to learn why ^_^