Oh great, even less choice, when what’s needed is more, though sadly, that doesn’t appear to be the way the sector is headed - at least, in terms of lenses and DBs. There's a lot of choice for the mechanical bits in-between (Alpa etc.)
Whilst symmetrical design WA lenses don’t play well with shifts on the current generation of DBs, I still much prefer them over retrofocus design lenses. Less distortion, less flare, better bokeh, beautiful rendering, lighter weight.
It’s crazy to expect lens manufacturers to come out with a whole new generation of lenses to match each generation of DBs. If the tech in the IQ150/250/CFV-50c was scaled up to full frame (~120MP), even the current R/S wides would struggle when shifted. Then what, a whole new generation of even stronger retrofocus lenses? The current R/S 32 is over $8k unmounted. What will the next iteration be $10k? $12k? $15k. I guess if they’re the only player in town, they can charge what they like. Whether or not there's anyone left to pay it ...
Rollei gone, Bronica gone, Contax gone, Fuji ‘gone’ (from MF), Mamiya ‘gone’ (absorbed by P1), Leaf ‘gone’ (absorbed by P1), and now S/K on the way.
Overall then, nuts.