There used to be thousands and thousands of such hybrid cameras used in in chain studios, both deparment store and school photos, at least in the U.S. and Canada.
They were essentially a stop gap measure before digital had enough quality to stand on its own. When this gear was changed over to digital only, virtually no one was interested in the hybrid gear which was mostly scrapped. Of course, these were big cameras, needing heavy-duty camera stands, not like you are probably thinking of. But still, there was no demand. One of the long-time manufacturers of long-roll portrait cameras (among numerous other products), PhotoControl Corp., went out of business about this time.
So no, I don't think there would be much interest today. If you wanted to rig something yourself, you could probably mount a tiny digital camera in the flash shoe of a standard film camera.