Not that I know of. He did see Nyxator's hide over the walls of Kaag.
Now there is an adventure for the Kai, recover the hide of Nyxator from the gates of Kaag. Very very difficult in the games time period, but much easier after Lone wolf destroyed the Darklords. Talk about the impossible quest walk into the Darklands and upto one of their greatest cities. "Um excuse me we've come to dry clean the dragon skin gate cover". Then simply remove several tons of sacred dragon hide and skin and slip back to Sommerlund with tens of thousands of darkspawn after you..... :lol: