We've got ourselves a new trailer for October's Doom 3: BFG Edition. This one highlights the PC, PS3 and Xbox 360 game's new eight-level "Lost Mission."

But what about Doom 4? Id is still working on it—they even moved their mobile designers onto the project, begging off any more mobile gaming for the time being—but that's about all we know. Given that today is the kickoff for id's annual Quakecon event and that's all they're saying, that's pretty much all we're going to be told, officially, for quite some time.