According to ESRB, the game is definitely Xbox 360 bound, but shows no listing for PS3. The ratings board has the PC and Xbox 360 version of the game listed, and considering CD Projekt has at least teased at the possibility of a console version previously, maybe this is as close to confirmation as one can get for now.
In an interview with Eurogamer, CD Prjeckt’s Senior producer Tomasz Gop had the following to say regarding a Witcher announcement at E3 next month (and it’s not Witcher 3):
“I can’t say anything obviously for gazillions of reasons but it is a Witcher game, and I can say that console gamers might be interested in it.”
“No, I’m not going to lie to you, we haven’t started work on The Witcher 3,” he said. “But it’s possible we might do it in the future.”