Call of Duty EVP Rob Kostich has been appointed president of Activision. Activision Blizzard CFO Dennis Durkin will also serve as president for the company’s Emerging Businesses. Each of Activision Blizzard’s major divisions (King, Activision, Blizzard Entertainment) have seen leadership changes in recent months. Activision Blizzard  has announced new leadership appointments, naming Call of Duty …