Known as Pinnacle Ridge, this new series will be fabbed on the GlobalFoundries 12LP node. It's not a new architecture but an enhanced version of Summit Ridge, somewhat akin to a tick-tock model.
The launch schedule will be similar to the current lineup, the high-end parts will arrive first. The first 12LP Ryzen chips will be the Pinnacle 7 series, to be followed by the mid-range Pinnacle 5 and entry-level Pinnacle 3 in March 2018. The sources claim AMD is confident it can capture 30 percent of the desktop CPU market in the first half of 2018.
Lower-power versions of Pinnacle Ridge will follow in April 2018 and the enterprise Pinnacle Pro versions should ship in May 2018.
There will also be some new chipsets for motherboards. The site says the 400-series will still be designed by ASMedia, they should arrive in March 2018 with X470 or B450-based motherboards being the first to hit retail shelves.