New DLC announced for BOTH Left 4 Dead games
 

There's gonna be a new campaign available for both games called 'The Sacrifice' which will tell the story of how a certain L4D1 character died, you'll control the original characters in it and if you get it for Left 4 Dead 2 you'll get an updated version of No Mercy for that game.

It should be great I was wondering how that certain character died and it'll be fun playing No Mercy with all the L4D2 enhancements.

Fantastic! I heard they were adding a new DLC for the original L4D and I look forward to this. Poor *certain character* :( They were my favorite in that game.

interestingly apparently (don't take this as gospel yet) it may be a choice who dies at the end of The Sacrifice rather then it being that certain character. It's only rumours and speculation at the moment though so take it with a pinch of salt.