Summit Ridge will be the first AMD Zen-based processor, this chip is expected to make its debut at CES 2017 and should see broad availability after February 2017. A couple of months later, AMD is expected to introduce Raven Ridge, this will be a mainstream APU series based on Zen.
Now we learn a couple of tidbits about what other chips AMD has in store and it seems the company has adopted a new codename scheme based on bird names.
AMD's avian APUs
In the first half of 2017, AMD is anticipated to roll out Snowy Owl, a Zen-based server chip.
Horned Owl will reportedly be Raven Ridge's successor, this chip is a mainstream APU and it will be followed by Banded Kestrel, a lower-end model with roughly half the specifications of Horned Owl. Both platforms will use the FP5 BGA socket, they are Zen-based but are primarily intended for the embedded market, although Horned Owl is expected to get a Socket AM4 desktop release. Horned Owl is slated for the second half of 2017 and Banded Kestrel should arrive in the first half of 2018.
Moving a bit further into the future, Gray Hawk will be one of the next big steps for the Zen architecture. Not only will this chip be based on the improved Zen+ architecture, it should also be one of the first 7nm APUs from AMD.
As always, take these rumors with a grain of salt.