Valve has not forgotten about Left 4 Dead 2: the game will soon receive a major content update
In July of this year, it turned out that Valve had once worked on Left 4 Dead 3, but abandoned the project due to the incompleteness of the Source 2 engine. Whether the company plans to return to it is unknown, but the studio is not going to abandon Left 4 Dead 2 yet. … The developers have announced the first major official update of The Last Stand in several years.