According to an interview with EE Times, Kutaragi stated that: "As a matter of course, I have the vision of PS4, 5 and 6, which will merge into the network. Now I'm ready to start working with a much wider world."
Wow, for consoles with a minimum 10-year lifecycle, we'll be living with the ramifications of Kenny's "PS3 through PS6" vision until most of us are... dead. Here's to hoping that advances in gene-therapy will keep us all alive long enough to experience Ken's PlayStation end-game. I can't wait. Of course, the SIXAXIS will have destroyed us all by then.