My bad, I thought you were saying there are only industrial PPC chips being developed.
Still these embedded CPU's are probably many times more powerful than a 330MHz PPC 604e.
You've got the e5500 PowerPC coming up soon and the A2 both Desktop capable PPC chips.
Still I dont think we'll see a PPC in the near future. Only possibility would be for an emulated one, but that is not Toni's interest so probably not.