According to Kotaku, Sony has announced their own virtual reality headset that will come to the PS4.
Similar to the Oculus Rift this will put you "into" the game including one example with the player becoming Kratos.
Here are the announced specs:
- 1080p display with 90-degree field of viewP
- 15mm eye reliefP
- 1000hz displayP
- Full 360-degree movementP
- Supports forward predictionP