It looks as though motherboards based on Intel’s current generation Z370 chipset will support the chipmaker’s upcoming 9th generation Core processor family by way of a BIOS update. We say this because at least two motherboard makers have already added BIOS updates for existing Z370 motherboards, with release notes suggesting they’re intended

Source: Hot Hardware – Intel Z390 Support For 8-Core Coffee Lake Refresh CPUs May Be A BIOS Update Away