https://wccftech.com/intel-ice-lake-server-roadmap-delayed-struggles-to-make-appearance/

Intel appears to have met further struggles with delivering its upcoming Ice Lake server CPUs, primarily due to issues with Intel's long overdue developments of the 10nm node. This bit of information comes from SemiAccurate relaying information obtained by their sources, but Intel has issued a statement in disagreement.

Despite SemiAccurate's findings, Intel made a statement to Tom's Hardware claiming Ice Lake is still on track and data center products will be available starting in 2020.