A source close to the publisher claims a "company wide" meeting held in Dallas resulted in Bethesda slamming the brakes. There's a "serious lack of confidence".
The alleged decision by Bethesda and ZeniMax stemmed from "the issues and reviews" of the recently released Rage, which has shown a "serious lack of confidence in the project management at id". The PC version has been heavily hit with technical woes.
The Rage development team was meant to switch to Doom 4 after the game was finished but that may now not be the case. Updates for Rage are still in the works as id develop a more extensive graphical options menu for the PC community.
The game's own system for determining how flashy the visuals are has failed, terribly, leaving most with blurred textures and horrendous 'texture pop-in'. For a while the PC community themselves worked to fix the problems, and to their immense credit; they did.
If true, is Bethesda right to force id Software to take a breather?