While Intel is expected to launch the Core 9000 series of processors during next October, MSI is already updating their existing motherboards with a new BIOS compatible with Intel Coffee Lake-S Refresh.
During the last few hours, MSI has updated the support page of all the fifteen MSI Z370 motherboards in order to make them compatible with upcoming CPUs. Since we have the MSI Z370 Gaming Pro Carbon AC, we will update our BIOS as well. Our plan is compare the performance of the upcoming processors with both Intel Z370 and Z390 motherboards. In other words, you can expect some comparison article once the products are available.
Source:
MSI