Retro Gaming Cables has released an update to their upcoming 480p all-in-on Dreamcast scart cable. They had this to say:
The previous problem with the board dimensions has been resolved. So now each side of the connector’s metal shell now aligns perfectly with the PCB. We are now working with our tool maker on the design of the transparent shell for this connector. It will be similar to our Universal SNES connectors shell, however the Dreamcast shell will incorporate a hole for the 480p switch.
When complete, this cable should make for a no-frills, yet very high quality solution for the Dreamcast.