To cut straight to the point, I want to know if Horde soldiers that aren't orcs can take part in the Kor'kron in Mists?
Now, we know that there were elves, tauren and trolls among their ranks circa TBC-Wrath, but how many of them would have stood by (assuming the Kor'kron are a life-time commitment) and how many would have left/been kicked out during Garrosh's reign. From the Alliance scenario in 5.1 we can see an elf and a tauren Kor'kron commander as well, but I'm not sure if that's just a mistake on Blizz's part or a confirmation that there are some fanatical/loyal enough to their oaths to stick with Hellscream.