I think Sony Computer Entertainment can continue to stay perfectly relevant so long as they realise that they are not the same company they were during the PS1/2 era and will probably never return to that dominance.
Make more sensible decisions. I'd actually say that their decisions in regard to the PS3 since about 2009 have been pretty fantastic, so continue this momentum forward with the PS4. Focusing on the core with the option for more family-friendly stuff (EyeToy/Move/Buzz games etc.) is a good choice of direction. They can at least stay relevant in the home console space (so long as home consoles stay relevant).
Handhelds is another matter. I think Sony is done on handhelds after this round, but they can still make Vita a success in the long run and I honestly believe they will.
All this comes under the umbrella of "Sony Computer Entertainment" though - the fortunes of the whole company is again, a completely different matter, but that's for Kaz to worry about :P
I still think the Playstation brand a big enough influence to maintain a lot of ground in the gaming world. But, that's just my opinion :)







