Source
During the PlayStation Experience Keynote, Activision and Treyarch officially announced the first downloadable content pack for Call of Duty: Black Ops 3, called ‘Awakening’.
This new DLC pack will be available first on PlayStation in early 2016. The new DLC includes four multiplayer maps and new zombies content.
Multiplayer Maps:
Splash
Gauntlet
Skyjacked
“Nine”
Zombies:
New Zombie Map - "Der Eisendrachen" Translating to, "The Iron Dragon" (cannot confirm name from image).
Black Ops 3 Awakening DLC will be available early 2016 on PlayStation and will be available at a later date on other platforms.