On Darksiders, right before fighting the Stygian boss you can get a Vulgrim location, from which you could go back to the beginning of the Ashland.
Since the Stygian is still alive, there should be the Ash titans roaming around (they eat you instantly if you let them too close); however, at this point of the game you already have your horse and therefore you should be able to kill them.
Has anybody tried this? What happens in this case?