In an interview, Sony Computer Entertainment's former President Ken Kutaragi presented his vision on the PS4, 5 and 6:
Speaking to EE Times, however, he shed light on his vision for PlayStation 4, 5 and 6, which he cryptically says will "merge into the network."
Kutaragi says he hasn't been able to talk about the next step for the PlayStation hardware because PlayStation 3 needed to launch in Europe first. "The design concept of the Cell processor is the network processor," he says. The heralded father of PlayStation says networked processors are the future, but PS3 wasn't ready for it.
This concept has been discussed in the past. In previous PS3 presentations, Kutaragi envisioned a world where appliances equipped with Cell processors would feed off the combined power of one another to create more raw potential than would be possible in a single box. "Now it has become possible, so why not enter?" suggests Kutaragi.
Though that may have been Kutaragi's original vision for PS4, that doesn't mean it's the path Sony will take, as Kutaragi says his future endeavors will be "largely independent" from Sony. What Kutaragi envisioned as the PS4, then, may never come to be.