I would say that if we could get a good Kickstart/Workbench replacement, we would be good to go. We have new hardware. It may not be the fastest hardware in the world, but it is here now, and has lots of software for it. It is the MiniMig.
I keep hoping that the AROS Kickstart replacement bounty will get taken up, and eventually full Kickstart 1.3 compatibility could be achieved. If we could ever get that, we could cut the last lines to AI. In fact, at that point, complete, ready to run Amigas could be sold.
If we could get to that point, I would guess that future improvements to both hardware and software would be inevitable.