2014 for Sony seems too late, given Nintendo a 2 year head start and MS 1 is very risky, unless Sony can warranty an extremely big first party and third party (without ports) launch or launch window games for the new system. And even that can't warranty a short-term success since those third party games will also be on the next xbox and probably the Wii U, only big third party exclusives will probably do the job. And given by history, launch games are usually not that great. Sure there's always the "most have tittle" but for the most part those games only represent the fans of a company.
Aside for games at launch (and launch window), third party devs will find it hard to make games for the system given that the Wii U and next xbox will have a big install base already, so at least at the beginning it will be hard for the PS4 to get those games (unless there are big incentives from Sony).
So it may not be that bad for a long-term success (this of course will depend on many other circumstances we don't know yet) but in the short-term success it will definitely "destroy" the system, I guess it will be similar to the PS3.
Nintendo and PC gamer
