Eclipse, the next Call of Duty: Black Ops 3 DLC, arrives on April 19th for PlayStation 4. The dates for Xbox One and PC will be announced soon. The DLC features 4 new multiplayer maps and a new zombie map, named Zetsubou No Shima. Below you can watch the trailers that showcase the maps. Eclipse costs 15$ if you don't have the Season Pass.
Here you can read more info about the DLC and buy it.