Yeah i know there are few different threads on theorycrafting the next warchief will be but this ones more specific.
I think Blizzards teasing us all, I think when we end up fighting Garrosh he'll be controlled by the "Sha of Anger" or "Sha of being a bad Warchief" or some other convenient thing.. or even All of them.
We'll beat him so that the Sha weakens and leaves him, and then kill it.. leaving Garrosh without his anger etc and to be a great new warchief for everyone.
I wouldn't put it past Blizzard to be that Schmultzy after the awful "thanks for saving the world. suprise! You're having a baby!" ending that Cata had.
You heard it here first.