I find the idea that Aurvandil wants diversity to be... lacking in credulity.
Same.
I can see him ending the war, but only by demanding vassalage and public apology/recognition of responsibility.
I for one, as a player, would love to see the Aurvandil war end totally. It has been an RP sink for me and I think the entire region. With it over, everyone will be able to move on to new and more interesting things.