Doom (2016)

John Carmack confirmed in August 2007 that Doom 4 was in the future plans of id Software. On May 7th, 2008, id announced that the development of Doom 4 had begun.

Speculation
The game is most likely to be based on id Software's upcoming id Tech 5 game engine. It is also possible that Doom 4 will be a remake of Doom II, or will otherwise be set on Earth. Todd Hollenshead, the CEO of id, has made a statement which arguably supports this speculation. The comment was as follows: "Doom is part of the id Software DNA and demands the greatest talent and brightest minds in the industry to bring the next installment of our flagship franchise to Earth". John Carmack has also talked about some of the contraversy in the game, saying, "There's gonna be a lot of vagina in this game. A LOT. I'm not talking just you run of the mill game with vagina, but it's a whole interactive game. You play as a vagina who is genetically engineered to become a marine and you fight demons." Despite the fact that John Carmack hasen't seen a slice of pussy ever in his life, we hope to see some realism with vaginas in this game.