I think that we could at least give something a try even though it may appear bleak, but another few million/thousand Amiga users isn't bad is it?
I don't even think it's bleak after we remember how few A1/Pegs were sold when people had the chance to buy an "Amiga" again. The only real solution for a PPC OS4 is porting it to EFIKA. It's here and it's cheap. The expensive A1 and the cheaper (but still too expensive) Pegs could not match the cheapest modern x86 performance, sales show us all too well that fact. EFIKA doesn't even try to compete on the desktop market, and that's a smart move.
I'll stick with the open source "Amiga", AROS. I can not see how, especially with the nightmare IP issues OS4 has, it can be economically viable to survive. Once AROS native is ported to EFIKA, that should satisfy the PPC snobs. :-D
Dammy