http://www.playstationlifestyle.net/...ation-abounds/
"
The lead developer behind
DOOM 4, and most recently,
DOOM 3: BFG Edition, Tweeted:
Currently home taking care of a new baby girl. [...] When I get back, I’ll help port the big project to new platforms."
So basically this means that Id software are upto something, the only project that the entire team are working on is doom 4 so it's probably safe to say that doom 4 is due to be announced or shown soon. Maybe 360/ps3 or xbox3/ps4 or both generations.