Some peple are saying never, but you have to consider the developing markets. I come from a developed country and the PS2's penetration didn't take root until the PS3 was in full swing in developed countries (same with PS1 and PS2). There is a lag for most people in these countries, and I expect the same thing to occur with the PS3 and PS4. There are PLENTY people who are interested in the PS3, especially since Sony is still supporting it and PSN is free. PS3 could eclipse the Wii in sales, but it would take time. I'd put my money on 2016 or so.
Playstation = The Beast from the East

Sony + Nintendo = WIN! PS3 + PSV + PS4 + Wii U + 3DS







