There is one thing I don't quite get though: Didn't one of the official sources (teaser, twitter, GI, etc) say that it was prophesied in the Elder Scrolls that Alduin would eat the world? I don't get that. If we actually succeed, perhaps the Elder Scrolls don't even mean anything. Like the Minority Report.
"...of night. The Elder Scolls themselves can pierce the veil. They offer a view of the flux of Time itself. The prophet who reads the scroll sees one version of what might be. Another prophet might have a different vision with equal veracity. The price for insight is the reader's sight. He is struck blind and..."
"The influences of the archivally historic Elder Scrolls cannot be understated. Once a prophesy [sic] contained in an Elder Scroll is enacted in Tamriel, the text of the parchment becomes fixed. All readers ingest the same divine message. It becomes an historical document declaring the unequivocal truth of a past event. Scholars, even those as dim-witted as Therin of Mournhold, cannot argue the bias of the writer, like he has with my earlier works. Not even magic can affect the word written upon those ancient pages."
"Adepts of our order are gifted with prescient powers. The wisdom of the ancestors can sing the future into the present. For this reason, our order and our order alone has been given the priviledge to interpret the Elder Scrolls. These writings exceed even the gods, both aedra and daedra. Such insight into the inner fabric of reality comes at a price. Each reading of the Elder Scrolls is more profound than the last. Each leaves the priest blind for longer, and longer periods of time. Finally, the last reading achieves a nearly sublime understanding of that scroll's contents, but the priest is left permanently blinded to the light of this world. No longer can he read the scrolls."
From several in-game books about the topic. Hope it clarifies things