Yeah, he's not so blind or with blinkers on like others in the Alliance because he is at least, that more open minded about the Horde then Varian ever was who essentially dictated the overall attitude towards them. I can see why people are speculating that the Draenor Orcs could come to the Alliance side and Saurfang being their leader. As Allied Races goes, there has to be a leader to well, lead them and Saurfang has offered a form of olive branch to Anduin which could be really taken either way at the moment. Coupled with, there's no real obvious leader for the Draenor Orcs except if they are form the AU... someone like Grommash Hellscream comes with them. I mean that would blow my fucking mind if it did like... Oh my days, the exchange between Thrall would just be so DAMN EPIC. Standing there, Thrall being so uncomfortable that he actually killed his son but I mean if Garrosh is born in AU then perhaps it won't be so bad but still imagine that paradox! Some epic writing there if... Blizzard actually do it. So here's hoping.
Still I think Saurfang is going to stay loyal despite his only real ally is Baine to an extent.