Along with the recent sale of Left 4 Dead 2 on Amazon and Steam, Valve released some new but vague information on their upcoming DLC, The Passing. New weapons, an all new Fallen Survivor uncommon common, and a reunion with 3 members of the cast from the original hit series Left 4 Dead have all been previously announced to be part of their action-packed DLC. But with their new Steam Midweek Madness Announcement, The Passing will also come with new game modes. Unfortunately, they’ve also reported the release date as Spring, much more vague than their X10 “Late March” prediction. Has Valve fallen behind, or do they have a trick up their sleeve? Stay tuned to Xbox360Digest.com to find out!

[Via Kotaku and Steam]