Looks like id are changing stance on the way their technology is going to be licensed in future, it's pretty much reserved for use within the stable of Bethesda/Zenimax published games.
Todd Hollenshead was reported by EuroGamer as saying that it might still be possible to license but that wouldn't automatically mean you got everything ("full disclosure" as Todd put it). So this is probably then end of third party title development, unless they're being published by Beth/Zeni. Not sure what this would mean, if anything, to modding their games though.
So whose doing what at the moment?
Rage = id internal, pub by Beth/Zen
Doom 4 = id internal, pub by Beth/Zen(?)
Brink = SD, pub by Beth/Zen
Console ports?