Call of Duty: WaW map-pack to hit March

Activision has recently updated the official Call of Duty: World at War site with news of a new map pack set to hit this March. Included in the pack are 4 all new levels, one of which is a zombie level that we heard of earlier today.
The four maps will be entitled: Nightfire, Station, Knee deep, and Verrückt (which is the zombie map). Upon reading the following description, taken from the game’s official website, Perks-a-cola really caught my eye; A perk vending machine of sorts? Fine in my book given a zombie infestation!
More on the levels below:
Nightfire
In “Nightfire,” players take to the streets of a war-ravaged Berlin with only the flames of the burning city to expose the enemy.
Station
“Station” offers a bombed out underground train station littered with hidden passageways and destroyed subway cars.
Knee Deep
“Knee Deep” takes place on the island of Peleliu in a once tranquil village turned chaotic Japanese command center.
Verrückt (Zombie Asylum)
The fan favorite 4-player co-op Nazi Zombies Bonus Mode returns with “Verrückt,” a terrifying Zombie asylum featuring more weapons, perks via the addition of Perks-a-Cola machines, electroshock defenses and the endless zombie horde.
Unfortunately there are no date specifics or hints to how much the pack will cost, bummer.