WOD conspiracy

WOD was all Thrall's idea, he ran out of Orcs to kill after Siege of Orgrimmar so he engineered the plot to send Hellscream back to Draenor to send a whole new army of Orcs for him and his beloved Alliance to massacre.

Did you see how happy he looked in those cinematics standing proud next to Maraad and Khadgar smashing his own people? His dream of being an Alliance human has almost come true, maybe he can get some surgery to change his skin colour and remove his tusks.

I only fear what will happen now that he and his beloved Alliance have slaughtered almost all of Draenor's Orcs, will he have to engineer another time crossed dark portal? Warlords of Draenor 2?

Only time will tell...