The quick way forward is to finish the G4 Mac Mini version of OS 4 and sell that.
Even though these machines aren't produced anymore there are a lot of second hand machines and these numbers are growing since Mac users are now gearing up for Intel machines. Doing this will ensure 1 to 2 years of free growth in both developers and users that can actually use the OS for something instead of getting too slow hardware or too unstable hardware.
During that time they can then choose another viable hardware platform which is affordable.
A 68k version is useless. Way too slow to advance the OS.
