Last week news emerged that Intel plans to rollout mainstream eight-core, sixteen-threaded processors in the second half of 2018. These processors will require a motherboard with the Z390 chipset but there was still uncertainty about the architecture of these eight-core chips.
There was some speculation these could be the first 10nm Ice Lake processors but now an errata log from Intel seems to clear up the confusion.
These eight-core CPUs will not be based on a new architecture but will be a new variant of Coffee Lake-S. The first Coffee Lake desktop CPUs are expected on October 5 and it seems this lineup will eventually be expanded with eight-core models.