https://www.techradar.com/news/intel-leak-details-new-x399-chipset-likely-for-kaby-lake-x-processors

It seems Intel is working on a little more than a new Z390 chipset as new leaks also point to an upcoming X399 chipset for high-end desktop CPUs.

A Twitter user named Momomo, posted an alleged document pulled from Intel’s download center that include the rumored Z390 chipset and the first ever mention of a new X399 platform. From the supported hardware details, it seems Intel’s forthcoming chipsets will support both existing Coffee Lake processors as well as future Canon Lake releases.