As for hopes that a new manufacturer will bring back the K-1000, or something like it, it's hard to see how it will be economically possible.
When I got into photography, around 1980, the K-1000 was selling for about $200 - about the same as the Minolta SR-T 200, Canon TX, Yashica FX-3 etc. By the mid '90s, all those other mechanical, metal cameras had disappeared, except the K-1000 was still around (although in the China-made, plastic top and bottom version). Locally, I saw it advertised at $499. Yikes!
For the same money you could buy a Canon Rebel with auto load and wind, several auto exposure modes, auto focus, and a built-in flash. On the face of it, the K-1000 didn't look like a good deal.
And if you had to have a simple manual SLR, the Cosina-made Yashica FX-3 super was available for around $399. That camera later morphed into the Nikon FM-10, the Olympus OM-2000 etc. But they didn't have the build quality of the older K-1000s, to be sure.
For any manufacturer to tool up and make a mechanical shutter, a mechanical SLR mirror system, a glass prism, and all the other bits and pieces needed to replicate what was commonplace in the 1960s (the K-1000 was really just a Spotmatic with a K mount), it's hard to see it selling for less than the $1,200 others have predicted.
The only way to make that fly is by going after the carriage trade, and make it with sterling silver knobs and buttons, ostrich skin leather covers, and interchangeable mounts for Leica R, Nikon F, Contax, and maybe Pentax K.
Or go after the hipster crowd and convince them the hemp fibre covers, and the baseplate made from plastics collected from the Pacific gyre, justify the price.