While Amiga OS at the time was impressive, a lot of people almost protect it with a type of religious zealously. Face it Apple, Linux, Microsoft, etc. have improved and surpassed. (Some may argue they have peaked, as they struggle for new useful features.)
I never understood AROS, it was a cool project but then I started thinking - why?! Why spend so much time to "emulate" something decades old.
It would be interesting to see a modern OS combined with Amiga philosophies. And as sacrilegious as that may sound to some, I personally think it would be good for the community.
That's the optimistic side of me, the pessimistic side is scoffing and I'm not repartitioning my hard drive just yet.