Activision and Sony in Japan released today the latest DLC of the Call of Duty: Black Ops III the DESCENT package. This package includes 4 new multiplayer maps (CRYOGEN, BERSERK, RUMBLE and the Empire) and a new episode for the zombie mode the GOROD KROVI.

The detailed information of the DLC can be found in here in Japanese:
The DLC costs 1600 Yen + tax.