The last games I have heard people in the real world talking about are Angry Birds, Plants vs Zombies and the Android port of Vendetta. While PC gaming isn't going to absolutely go away anytime soon, I don't foresee it being a growth market. We are probably at the point where new PC gaming studios will open only as fast as old ones close or are absorbed into behemoths like EA. New creative indie gamers are mostly going to be doing their first games for cell phones as a pervasive distribution system with modest pricing schemes is now integral to the experience.
To anyone who disagrees: what is the last new genre of video game that is largely installed (by installed I mean not played in the browser) on PCs? PC gaming is pretty much dominated by FPS, roleplaying, life sim and RTS/TBS. All genres that were pretty well codified in the '90s, with changes since then largely being evolutionary rather than revolutionary, or of the "but on the INTERNET!" variety.
To put it in numbers
, Angry Birds has 50 million shipped, which is more than three times as many as the biggest selling PC game The Sims at 16 Million. Wii has 7 games that sold better than The Sims. The DS has 5 games that sold better than The Sims.
So no, PC gaming probably isn't going to go away for a bit. On the other hand, it really isn't going anywhere at all.