What would have happened if Thrall had been killed by the Lich King during WOTLK or if he had been assassinated by the Twilight Hammer or other assassins during or before the Cataclysm, though without having named Garrosh or a potential heir to become warchief should he die ?
What would have been the situation for the Horde ? How would have they tried to find a new warchief ? Could have there been a civil war because of it ? How could have this changed the overall story of WOW ?