I know it isn't like this in the books but if you killed every single orc and glassed Mordor, and Sauron doesn't have a body and can't retake one without the ring...what's he going to do? Turn his shitty eye and shoot bad vibes at your forever? Just don't live near him (you glassed it anyways ). Pretty funny to think of Sauron still alive but utterly impotent because all his servants are dead and he's still disembodied.

So basically the fireworks scene again, but on a slightly grander scale?

It would would probably kick saurons time table a bit back