Source: Citing a source close to id Software parent Zenimax, Kotaku reported that Doom 4 development has been halted.
What we heard: After launching to less than universal praise, Rage has supposedly caused higher-ups at id Software parent company Zenimax (which also owns Bethesda Softworks) to second-guess the Texas-based studio. The general reaction to the launch of id Software's apocalyptic shooter has reportedly resulted in the publisher feeling "a serious lack of confidence in the project management at id."
Doom 4's existence was first acknowledged in May 2008, when the developer sent out a press release stating that production had begun on the game. At E3 2011, id Software head of technology John Carmack said the core team on Rage would move to Doom 4 development following the release of its latest shooter. He also said a sequel to Rage was planned to launch after Doom 4.
The official story: "Games are done when they are done and no title under development at id has been postponed--indefinitely or otherwise."--A Bethesda representative responding to GameSpot's request for comment.
"Complete bollocks."--Bethesda VP of PR and marketing Pete Hines, on Twitter in response to a post hoping that the rumor of a Doom 4 delay was "bollocks."
Bogus or not bogus: Bogus. Doom 4 may be back-burnered, but Bethesda's unequivocal denial suggests that its development status hasn't changed. As for whether or not the Rage team is being moved onto Doom 4 now as Carmack had suggested it would be, that's another matter entirely.