I hope he journey's to find Doomhammer and give it back to Thrall to restore honor:
"Through blood the weapon shall pass, as surely as night begets day, Until the elements cry unheard, and pride turns to unbridled rage. The last of the line shall deliver salvation and doom upon his kind. Honor will be undone and all will be lost, before it is found again. A stranger will raise the hammer high, and with it justice shall reign."
Yes, It would seem most of the prophesy has been fulfilled but it is not complete. The hammer is iconic and should be in the hands of an orc leader...Saurfang can take up that mantle, but I would like to see Thrall.