There's no official announcement about a third entry in the Left 4 Dead series, but it has been revealed that Turtle Rock Studios is developing a new co-op sci-fi shooter:
via Game Informer: "The sci-fi multiplayer-focused shooter pits a four-player crew of alien hunters against a separate player-controlled monster that grows larger and more powerful over the course of matches. Each hunter features its own unique items and abilities, and while the monster may be outnumbered, its size and an assortment of devastating attacks make it a more than formidable foe. Like Turtle Rock's previous titles, Evolve is being built with variety and replayabilty in mind; the result is a novel mix of cooperative and competitive multiplayer elements that's unlike anything we've played before."
Evolve is expected to be released on the PC, Xbox One, and PlayStation 4 later this year, so we'll get a much better look at this game this summer. Until then, here's the look at the upcoming cover of Game Informer: