Activision has told Eurogamer that the Call of Duty 4 Variety Map Pack is still on course for release in "early April".
Whether or not that means this week on Xbox 360 is yet to be seen, although developer blog IAMfourtwozero is adamant it will be.
The Map Pack will cost 800 Microsoft Points and include fresh areas Broadcast, Creek, Killhouse and Chinatown.
Broadcast is suited to large team games and takes place in and around a multi-story television station; Creek is a wide open village with lots of foliage and scattered farm buildings providing great cover for snipers; Chinatown is a modern version of the Carentan Call of Duty map, and takes place at night and works with most gametypes; and Killhouse is an enclosed warehouse made up of plywood training structures for soft and hard cover shoot outs between small teams.
The PS3 Variety Map Pack will arrive roughly 21-days later, with a PC version still unannounced.
Pop over to our interview with Infinity Ward to see what it had to say about the Variety Map Pack.