Photos of a series ASRock Z370 motherboards for Intel Coffee Lake processors have leaked on-line. Coffee lake is the 8th gen Desktop processor series that will support up-to 6 core processors.
Over at VideoCardz the photos of six no less than Z370 motherboards have been published. The lineup from ASRock includes Taichi, Extreme4 and Killer SLI/ac. The more budget-oriented Pro4 comes in ATX and MicroATX form factor. The last motherboard is the first Mini-ITX Z370 motherboard.
It is indicated that October 5th the platform would become available.
** update - ASRock requested the photos to be taken offline as Intel is breathing down their neck. Ergo, we have removed the mobo photos.