A Preview of The Passing DLC for Left 4 Dead 2 on Kotaku looks past the upcoming DLC for the zombie sequel with news that its planned March release will be followed a "month or so" later by another DLC pack for the original Left 4 Dead, saying this will be "an episode that will tell the story of the original survivors' journey to 'The Passing'." The Passing DLC for L4D2 is also going to be followed by a digital comic book that tells more of the survivors' back stories.