You read that correctly! Left 4 Dead's original four survivors -- Bill, Zoey, Lois and Francis -- are heading to the American South in Left 4 Dead 2's brand new DLC! "The Passing" will see our intrepid Survivors arriving in Georgia for a new campaign set just after the events of "Dead Center."

Here's the rub, however -- players will still take on the roles of Nick, Coach, Ellis and Rochelle. They will meet up with the original four Survivors during the course of the campaign. This will mark the first face-to-face meeting of all eight survivors, and it should be pretty epic. In any case, it'll be good to see the older (better) team once again. 

In addition to the new story mode, The Passing brings us a brand new Uncommon Infected, new maps for Survival, Scavenge and Versus and a mysterious new co-op mode. In addition, there will be a brand new firearm and a new melee weapon to up the zombie-smashing ante. 

The Passing is scheduled to hit Xbox Live and Steam in Spring 2010.