Josh says:
Yes, but I can’t really say I think it will come out in 2011, or 2012.
I mean it could, but the PS3 has really good technology that can make it an excellent console for many, many years to come.
I say if Microsoft makes a new console that is more powerful than the PS3, which they probably will, then yeah, I could see a new Playstation out by 2012.
Source:
http://www.boomz.net/do-you-see-a-playstation-4-being-developed-in-the-future-by-sony-why-or-why-not/?utm_source=rss&utm_medium=rss&utm_campaign=do-you-see-a-playstation-4-being-developed-in-the-future-by-sony-why-or-why-not