Thread:LucidPigeons/@comment-27729149-20151002040714/@comment-27560932-20151003203022

In one potential path following his redemption, he sacrifices his own life to deliver the killing blow so the Grey Warden doesn't have to die. It's lampshaded by himself, as well ("Please... I've done so much wrong. Allow me to do one last thing right.") Regardless if you or the other characters are willing to forgive Loghain (and forgiving him comes with consequences in-universe, as pretty much no one else is willing to and letting him join your party means one other character leaves for good for this exact reason) but Loghain is ultimately presented with enough sympathy and remorse for his atrocities that yes, he ultimately redeems himself. Even if you decide to kill him (like I did, because frankly at that time I thought he was a bastard too) he still goes peacefully.