askel50 on 23 November 2012
It will be OK as long as it is considerably more powerful than PS3 (which by the way doesn't mean that it will cost a lot to produce, they just have to make the right choices). It is true that PS2 was "a weak console" but it was still much more powerful than PS1. If PS4 is a little more powerfull than PS3 (e.g. as powerfull as the WiiU) people will stick to PS3. It won't even make sense for sony to create such a device, just skip a generation, PS3 can compete with WiiU anyway.
