Lots of people will no doubt be looking forward to Exo Zombies in Call of Duty: Advanced Warfare. It's been a favorite among fans since Call of Duty: World at War. In fact, that game has sustained healthy numbers for that very reason. People like to kill the undead in the Call of Duty formula and I can get behind that.
The mode isn't currently in the game, but it is coming with the Havoc DLC in January. If you want to grab a look, do so in this new trailer.
So yes, John Malkovich, Bill Paxton, Rose McGowen and Jon Bernthal names were for sure in that trailer…and that was it. It gives us literally no clues as to what they are doing besides Malkovich giving a somber voice over.
I certainly hope it is in the capacity that Danny Trejo, Sarah Michelle Gellar, Michael Rooker and Robert Englund were back in Call of Duty Black: Ops.
My guess is that this will be played more seriously though. That is a shame. I'd love to see Malkovich let loose in a recording studio in a game about shooting zombies. In fact, just give him his own "bad guy" role in a future Call of Duty campaign.