Sony as a whole is doing badly at the moment, but the Playstation brand would the last thing to be affected by this. It's their healthiest division.

And they've already entered the next handheld generation with the Vita.
Likewise, it'd make no sense for Microsoft to bow out just as the Xbox has begun to explode.

But perhaps they're planning to keep supporting the 360 instead of making a brand new system. They did say that Halo 4 was the beginning of a new trilogy. I always thought it was weird that they wouldn't wait until the next gen to start that.
