The ULX4M boards are not available yet but seem to support both PCIe as well as digital video:

https://kitspace.org/boards/github.com/intergalaktik/ulx4m/

Done by the same team who did the ULX3S.

Actually not, it's wired via a FT601. However, that's not saying it can't be useful.

E.g. you could make it behave like a UVC-type USB3 webcam for the video output.