http://www.pcgamer.com/intels-12th-generation-sapphire-rapids-core-architecture-may-arrive-in-2020/

Intel is planning to launch Cannon Lake before the end of the year, followed by Ice and Tiger Lake, all of which will presumably be built on a 10-nanometer manufacturing process. Looking even further down the road, however, Intel's website hints of a possible 7nm product called Sapphire Rapids.

Sapphire Rapids will be Intel's 12th generation Core processor family. The company's just-released Coffee Lake line for the desktop is considered its 8th generation Core family, so Sapphire Rapids is several generations away.