Sony's not going anywhere. A popular handheld device along with a brand that is still showing to be popular on consoles. You just don't kill a brand like that without another go. Now if something similar happens in the generation after then maybe they'll start thinking otherwise but there will be a PS4.
Sony is just going to have to rethink the next generation. They will probably release something that isn't, spec wise, that much more powerful than the PS3. But they'll boast some new features among other things to sway buyers.
Really its MS and Nintendo who will have more radical changes with their next systems but mainly because they have more room to work with than say Sony. They'll be in positions to make those more radical changes. Not saying Sony will play it safe, but from my perspective they are going to play next generation a little safer. Nothing radical like Nintendo did.
