I dont see it happening. It would not be profitable.
Like the 645 and many other brand "modern" MF SLR's the ones still around are living on borrowed time.
Less people around to fix them, and less parts as well.
If I get another 10 years out of my 645N I'll be happy, but I am in the process of getting one or two more bodies as well.
The best bet for longevity is to use old all mechanical MF folders, from 6x9 to 6x4.5.
They will run forever, if you teach yourself how to fix them.
I did.
Konishiroku Pearl II | Hexar 75mm ƒ4.5 | Kodak Tri-X 400 | Legacy Eco Pro R | Kodafix
City Frame-164 by
Eric Auer, on Flickr