The Kiev 88CM is still being manufactured .
The Holga is being pumped out by the yard (all silly protests non- withstanding).
Not sure if the Lubitel is yet being manufactured, probably not, but I can't be sure.
You forgot the Russian Sputnik 120 3D camera (in the last 25 years)...
Got to be more FSU and former Iron Curtain Cameras...
Fuji actually make the H series for Hasselblad, and sell a 6x4.5 version in Japan. I think only the GX680 is the only other Fuji medium format camera being made, though it is possible to still purchase a new Fuji 617.
After change of ownership, Mamiya is still making medium format cameras. It has yet to be seen if any new lenses will be developed by them, though the current selection is fairly extensive.
Leaf and Sinar are selling a version of the Rollei Hy6, which can also use a film back when needed. This system can also use Rollei 6000 series lenses.
Horseman is still making panorama cameras, like a 6x12 and 6x17, and has a 6x9 available. Similar offerings can be found from Linhof, in the 612 and 617 sizes.
Beyond those companies, all others are indeed very small manufactured volumes. The only possible exceptions might be Holga and Seagull.
A G Studio