Had Amiga survived it would have likely followed the Mac route, first to PPC retaining a classic environment for a time until software caught up and then moving to X86 with a Rosetta layer that would eventually be abandoned as software caught up. Unfortunately it didn't and so you have the Coelacanth OS you have today....
That's always been the way I'd have expected things to go. Compare to the Mac world, which is the only real analogue: Do you consider OSX on Intel to be 'Mac' in the same way that the classic 68k Macs were?
I'd say 'yes', but I think the big difference is that the transition was always there. PPC Mac OS still ran 68k code. Eventually the 68k compatibility went, but the platform had moved on. Now we're on x86 and the PPC compatibility days are numbered. There's old Mac software I simply can't run any more, but my x86 Macs are just as much Macs as my old PPC or 68k ones.
The problem Amiga has is that the gap was too long and the Amiga-ness got lost somewhere along the lines. AmigaPPC never really took off. PPC cards for the classics weren't tremendously popular at the time and the newer PPC-only 'Amigas' had no backwards compatibility, there was nothing to tie them to what people already considered 'Amiga'
As for me, it's only an Amiga if I can boot it off my Lemmings floppy. If Natami can do that, it's an Amiga in my book!
