by sigmazero13
You are correct - an already-routed hero doesn't have anything happen to him if a battle occurs in his area, as he isn't involved in the battle.Jaes could indeed use his ability - he just can't move, quest, or initiate a duel like you said :)
Having a routed hero is more "inconvenient" at times than truly devastating, and for the most part, the biggest time where a routed hero will be noticeable is if it happens during the Spring.