Gotta agree on cyberpunk being a different animal from the other "punk" subgenres, as the only real hard sci-fi option of the bunch (if only in a "20 Minutes Into the Future" sense.)
From a certain way of looking at it, all the other "punk" subgenres are "kitbashes": what do you get when you take Victorian costumes and buildings, and glue a couple ray guns, robots, and airships into it? Steampunk! What do you get when you take a suit of armor and glue some robot arms or heads or ray guns onto it? Clockpunk or Dungeonpunk or Candlepunk or whatever the cool kids are calling it these days! Got some WWII German bits and a few sci-fi bits? Kitbash them together and call it Dieselpunk! It works the same way whether you're talking about miniatures, literature, comic books, movies, etc....
And thus it probably works best for miniatures: if you have some good, distinctive historical kits - especially civilian kits - to work with as a base, and some good flexible sci-fi bits or kits to bash onto that base, then you've got the makings for pretty much any "punk" sci-fi subgenre you can imagine, from the popular ones, to ones nobody has ever imagined.
Though, chances are, they've been imagined: What do you get when you kitbash some robot bits and rayguns onto, say, a neanderthal/cave-man kit? Wargaming action in the world of Yor: Hunter from the Future! Or Pellucidar, Barsoom, or Masters of the Universe, or Mad Max.... What do you get when you kitbash sci-fi bits onto a Roman legion? Not sure there's a name for it, but I guarantee we've seen it before on Star Trek or Doctor Who....
I'm not a big fan of 3D printing and the whole digital thing (yet), but seems to me that Wargames Atlantic Digital is a fine place to start with providing some sci-fi kitbashing bits suitable for this sort of thing, though ideally I'd love to see boxed kits for robots, retro Victorian etc. costume bits, ray guns, and the like suitable for at least Steampunk and/or Cyberpunk gaming, which can be used as the source for more exotic "punk" projects.
The main roadblock, naturally, being whether there's enough demand to support it.
Especially considering how large a share of the sci-fi miniatures market is dominated by 40K, with almost anything sci-fi that isn't 40K-flavored being by default a niche market, in exactly the same way that anything fantasy that isn't D&D/Warhammer/Warcraft/Tolkien-flavored is by default a niche market!
That said, I think that there's surely a reasonably large market out there for sci-fi to fantasy kitbashing for at least the purposes of retro soft sci-fi "space-opera" style gaming, a-la Star Wars, Starfinder, Star Trek, Doctor Who, and the like... traditional fantasy pig-faced orcs/hobgoblins kitbashed with sci-fi bits? We've seen those before dozens of times in those franchises, just starting with Klingons.... Any interest that can be generated among Shadowrun gamers in kitbashing orc and troll bits onto cyberpunk trenchcoat hacker and detective bodies and the like would be surely be niche icing on a niche cake for "punk" sci-fi kitbashing kits and Wargames Atlantic's fantasy line.
For what it's worth, I love the idea of a "not-Kzin" sci-fi cat-alien faction! I've proposed it before, but I don't think it got any traction. 40K, D&D, and Warhammer still seem to dominate the fantasy and sci-fi gaming markets, whether I like it or not! (I don't hate it, but man, I wish there were more than a niche demand for wider variety in fantasy and sci-fi subgenres!)