Possible Storyline with spoilers:
My Theories:
#1
What if garrosh goes to the past/alternative draenor with the only purpose of bring sargeras/The legion with the hep of Gul´dan or Ner´zhul to destroy azeroth and destroy the ally ?
#2
Garrosh goes to the past draenor to revive Archimonde and Mannoroth with the help of sargeras, part of the deal is that garrosh will become a super demon/orc and finally will be able to defeat the ally
#3
What if the Draenor in the next xpac is not an alternative/past version of it, and its a real live version of a reconstructed Dreanor by the titans ? and Sargeras goes to draenor in some part of the xpac and tries to bring the legion to azeroth?
and I´m pretty sure that this xpac will be end with the Sargeras or kil´jaeden trying to destroy azeroth again.
sorry for my english hueuheueheu