Gourmet on 15 September 2015
Any time between 2018 and 2022. Fully backwards compatible with PS4, and very large support for games on all previous playstation systems, possibly with improvements via emulation. Will allow for a computer OS(remember otherOS?) and may already ship with Steam OS or even Windows booting straight to Steam Big Picture. Running android .apk is also a possibility.
Developing for it will be based solely on multiplatform tools like Vulkan. There will be very few exclusives and physical discs will remain, albeit only more popular or previous generation games will be on them.
