IW/Activision announced the DLC schedule for MW3:
    January: 2 Maps -- Liberation and Piazza
    February: 1 Map
    March: 1 Map, 2 Missions
    April: 2 Maps
    May: 1 Map, 1 Mission
    June: 1 Map, 1 Mission, 1 Mode
    July: 2 Maps
    August: 1 Map, 1 Mission, 1 Mode
    September: 1 Map, 1 Mission