Activision has announced that Call of Duty: World at War's third map pack will be released on Xbox Live Arcade and the PlayStation Network on August 6th. That's this Thursday.
The previously-announced DLC features three multiplayer maps and a zombie map, as usual. It will cost 800 Microsoft Points (£6.80 / 9.60) on XBLA or £7.99 / 9.99 on PSN.
If previous form is to be followed it will appear later on PC, but for free.