ASRock has a new mini-PC board ready to go. As it appears to be designed for the Intel Pentium Silver J5040 chipset, it may be pitched at the lower end of this market. It can drive up to 3 displays and has an HDMI port that supports 4K at 60 fps, but no USB type-C ports.
https://www.notebookcheck.net/ASRock-has-a-new-Gemini-Lake-Refresh-compatible-ITX-board.450942.0.html