What does really happen after Alduin eats the world? Does the world reform itself again? Is Lorkhan revived and tricks the other Aedra into creating a new world? Does this new world have new gods and goddesses? If so what happens to the old ones? Are their realms eaten as well? Or do simply get erased from existence? Does the new world have new races? Or does history simply repeats itself, like Lorkhan tricking the Aedra and then getting his heart ripped out again by Auriel? What happens to all the souls in Aetherius like Sovngarde for example? Are they eaten by Alduin or are they sent back to Nirn?
Anyway those are my questions, hope they make sense.