so if you complete the Civil War quest then you should know what happens in at the end "there will be a moot to decide on the High King or Queen" depending on which side you chosen "just saying" but should there be quest that involves the Moot?

probably.

There is certainly potential for a quest there.

You could go around making sure that the Jarls are going to vote the way that you want them to vote.

and also during the meet assassin's show up from the Aldmeri Dominion and tries to kill the next High King or Queen