According to a press release sent out from GameStop just now, Zombies are coming to Call of Duty: Advanced Warfare as part of the DLC Season. For fans that buy the season pass, you will get access to the zombies that does come to Advanced Warfare. Breaking News for Call of Duty Fans – Zombies are Back! This just in, Zombies are back as part of the Call of Duty: Advanced Warfare season pass! Stop by any GameStop to pick up one of the most anticipated games to launch this year, along with 4-multiplayer map packs, Atlas Gorge, and yes – ZOMBIES. All this is available for purchase today GameStop as part of the Call of Duty: Advanced Warfare season pass for only $49.99. There’s no confirmation if this is a separate mode or just more bonus waves for Exo-Survival. Source - CharlieIntel
If they're releasing a Zombie Map Pack, this could save Call of Duty from the crap what was called Ghosts!