Probably never. Valve can't count to three.
There has been no confirmation if there will be a Left for Dead 3.
No, Left 4 Dead 3 is not coming out. There is only Left 4 Dead and Left 4 Dead 2. Both fun games.
left 4 dead 3 will be released in November of 2011. its true
no, left 4 dead 3 would not have the same characters as in 1 or 2
Maybe, Left 4 Dead 3 has been hinted at by Valve on a few occasions.
Actually there is no left 4 dead 3 valve dosen't know how to count to 3
Left For Dead is so much better! Left For Dead rocks!
The makers of Left 4 Dead are currently not working on a Left 4 Dead 3. But they are making a lot of DLCs for the Xbox 360 and PC.
There is no release date on left for dead at this moment.
There may be a Left 4 Dead 3. I think they started making it September 2011.
No Left 4 dead 3 will be in 2013 i think
Not Left 4 Dead 1 or 2, but Valve and Havok announced the Haggard in Left 4 Dead 3.