Off course they can do 4.1 for 68k, but what would you use it for?
Only potential I can see is that you can then run 4.1 under WinUAE, but if the future of Amiga is emulated OS under Windows then I would not like the future.
Use your brain, why did they do 4.1?
Answer: to make money
Can they make money on making OS for obscure hardware (AmigaOne)?
Answer: no
You guess the rest...