On Wednesday, Treyarch will make some sort of a reveal concerning zombies during their DICE presentation. Treyarch is the studio working on this year's Call of Duty title, so it should probably come as no surprise that there will probably be a zombie game mode included.

Then again, it is entirely possible that this will be an entirely separate game. Hell, it might even be the entire premise for the next Call of Duty game. Who knows at this point!

Their Tweet making the announcement included this image. It clearly shows a Perk-a-Cola on the right and the power symbols on the left.
Countdown to Zero Hour. Stay tuned for livestream info regarding Wednesday’s presentation. #DICE #Zombies