-On the reason for 11-
11 has a heavy metaphysical meaning in the elder scrolls exspecially when concerning akatosh. akatosh is revered throughout the elder scrolls universe for being the creator of time. What many people don't realize is that he is also alduin the being of destruction. They are one and the same. a quote from kirkbride demonstrates this "Assume "The Dawn Era was the End of the Previous Kalpa. The new Kalpa begins with the first day of the Merethic Era."" so in order to be a creator akatosh has to destroy the previous world. This is where 11 comes in. as vivec once said "when they switch places can you tell the difference?" so creation and destruction are one and the same but yet different. how could they be different you might ask? I think they are the same entity with different personalitys. I think this because of this quote from kirkbride. "Just like Akatosh-as-we-usually-know-him could time-scheme against his mirror-brother of the Nords, Alduin, to keep the present kalpa-- perhaps his favorite-- from being eaten."
-on how alduin could be released.-
there is most certainly elves involved in releaseing alduin from his prison.the reason I believe this is because of 3 quotes from different sources.
first a kirkbride quote.
1.)----
To kill Man is to reach Heaven, from where we came before the Doom Drum's iniquity. When we accomplish this, we can escape the mockery and long shame of the Material Prison.
To achieve this goal, we must:
1) Erase the Upstart Talos from the mythic. His presence fortifies the Wheel of the Convention, and binds our souls to this plane.
2) Remove Man not just from the world, but from the Pattern of Possibility, so that the very idea of them can be forgotten and thereby never again repeated.
3) With Talos and the Sons of Talos removed, the Dragon will become ours to unbind. The world of mortals will be over. The Dragon will uncoil his hold on the stagnancy of linear time and move as Free Serpent again, moving through the Aether without measure or burden, spilling time along the innumerable roads we once travelled. And with that we will regain the mantle of the imperishable spirit.
this is most obviously the way that the elves tend to release alduin so everything so far has been leading up to this.
2.)----
from book of hours
"...one last note regarding the phenomenon of the middle dawn: it should be mentioned that at least one myth (‘The Blue Bone-Ring of Jyg') suggests a relationship between Mnemolic sorcery and the Void Ghost Eaters, the magic practiced in the countless Trickster cults scattered throughout the Tamri-El."
in this the void eater ghost is most certainly a reference to alduin and how he is related to certain mer cults. Now the only question is which mer cult?
and last but certainly not least the newest quote from game informer.
3.)----
And the scrolls have fortold
Of black wings in the cold
That when brothers wage war come unfurled
Alduin bane of kings
Ancient shadow unbound
With a hunger to swallow the world
This is related to the previous quotes and when taken with them is sure evidence that the mer are behind alduin's return.
-who I believe will resurrect alduin-
edit: not falmer script different I misremembered
I still believe that the mer will be responsible for raising alduin
Now I could go even furthor by bringing in the "seven fights of the aldudagga", "shor, son of shor", "on the nords lack of a creation myth", and "36 lessons of vivec" but I'll let other tackle that.