I dunno. AmigaOS x86/64 might mean less expensive hardware. Hell, at this point maybe an up-and-coming processor like ARM might work out. Though that might make Amiga too much like an Acorn.
I think in all of those discussions, people need to ask question what makes an Amiga?
I have to say. If my AmigaOS4.1 would run as good as my WindowsXP on PIII 600Mhz + RivaTNT2. I really would not care what in under the hood.
Considering that basically there is not Amiga "proprietary" CPU/HW since ALL of this HW is available for other systems, really what is such a big deal about making AmigaOS4.1 for Intel based HW? It is not like I'm using Amiga specific LAN, sound card, GPU, ram, HDD etc. etc. even Amiga specific HW such as BVision was developed for PC computers etc. etc.
Can someone give me a reason why we have to have either 060 or PPC for AmigaOS. Some different reason then: Windows will not run on it. This was important 25 years ago...
What is most important/problematic: Waiting for under powered new PPC HW or waiting for AmigaOS that is widely available?