@Iggy
I think it's meant by one core/32bit. And the point of a combination of AmigaOne and Natami is to avoid having to use the UAE. I prefer to use one physical computer instead of two and three or more. But I am aware Natami will not be an expansion card.
Anyway, if I had a replacement for A1260PPC or rather a 4000 with CyberstormPPC but was 10-15 years ahead, I would have paid what it would be for it. And now I'll stop dreaming.
@DavidF215
Expect the answer to your question is, the market is too small. There is the Sam440 or 460 card, but the price is too high in my opinion.