If Thordan Ex might happen then perhaps Thordan can pull an Odin since his sword was never destroyed after Thordan and co.'s defeat. Combined the fact that it was within the core of the Warring Triad it may have given it that extra boost at transcendence/power. Isn't the seal on the triad leaking? Who's to say that Thordan's sword/ will is still slowly sapping the leaking energy from it?

Yes, I remember that the Hecotonier were slaves of the Thorne Dynasty of Ul'dah, at most they're all seem to be sealed deep undergound. The Gigas (not sure about those giants) were from the north and came south for the Crystal Tower? But yeah, so we we haven't spotted them in/near Abalathia's Spine.