AROS could be ported to other old m68k machines but that generally requires someone with the machines (or a good emulator of them) doing the port for the necessary driver support. There's probably netbsd or similar driver sources out there that could be used as a reference. I doubt there is much interest out there to make it happen. I'd expect most classic machine owners to have a preference for the original OSes and apps that came along with their machines. Personally, I'm more interested in seeing AROS run on currently manufactured and future production hardware platforms, and getting lots of updates and upgrades along the way, while still feeling Amiga-ish to me. I'm so tired of putting up with Windows, Linux/Xorg, OSX, etc. all these years since Gateway2000 did the Amiga platform in and the marketplace collapsed around it.