Throughout this expansion we have seen the Kor'kron participate in Garrosh's schemes to a rather extreme end. After they have been defeated in the Siege of Orgrimmar, what do you think will happen to those left alive? What will happen to the Kor'kron as an organization?
Edit: Forgot that members of the Blackrock clan compose a formidable amount of the Kor'kron. Whether this may or may not have any affect could be debated.