Most recent novel chapter shows this but also doesn't in a way. Basically he warned the twin horns and his family about the ambush from the bandits, after this for the next few years I assume he start to forget his life as grey and the ki system, this then leads to him only being a dual elemental mage, he then goes to xyrus as normal (he doesn't know Tess as he never fell from the cliff(also means he doesn't have Sylvia's beast will or sylvie)). Everything goes normal until the widows crypt desencion where Arthur eventually ends up dying. (If your wondering none of this actually happened, he's activated the 4th keystone causing him to re live his life over and over again with the ability to change any event that happened within Arthur's life. Every time he dies he returns to the moment he was born and he can't leave the keystone until he has gained the knowledge the keystone is trying to teach him)

I'm pretty sure he doesn't actually pass Bairon until he returns from Alacry