IMHO, the real sellable value Hyperion has is in the 68k area, but they don't seem to take advantage of it.
They could improve some things every year or two and we'd all go buy a copy.
They could partner with Minimig dealers, FPGA Replay and Natami to supply the OS to shipping, upgraded machines that are about to exist. But they don't.
I'm not sure what pipe dream they have for PPC, but if it hasn't clicked in the last 15 years, I just don't see it happening.
MorphOS seems to have that market already nailed down. Competing for the used Mac Amiga crossover market doesn't make a lot of sense to me.