Like clockwork, Call of Duty Elite members can expect their monthly Modern Warfare 3 DLC tomorrow. As promised, April's content drop consists of two maps: Sanctuary & Foundation. It will be available to paid Call of Duty Elite members on Xbox Live tomorrow, and should be available to paying Elite members on PS3 next month. Non-Elite members can expect this DLC to drop in a general "Content Collection" later in the year--first on Xbox Live, of course.
Here's a first look at the Sanctuary map, via Twitter: