Well, some more details about the Doom beta have popped up over on the beta FAQ site, with Bethesda detailing that the beta will only happen on PS4, Xbox One, and PC, while PS3 pre-orders get access to the PS4 beta:
Doom beta access correlates to your pre-ordered Wolfenstein: The New Order platform. If you purchase an Xbox 360 or Xbox One version of Wolfenstein: The New Order, you will receive an invitation to the Xbox One Doom beta. PlayStation 3 or PlayStation 4 purchasers will receive an invite to the PS4 Doom beta. All PC purchases will receive an invite to the PC Doom beta.
The Doom Beta will only be available on Xbox One, PlayStation 4, and PC.
As well, a PlayStation Plus membership won’t be required to play the Doom beta on PS4, but Xbox One owners will need an Xbox Live membership.
Do you think the lack of a PS3/Xbox 360 beta means Doom will only release for the PS4, Xbox One, and PC? Let us know in the comments below.