I guess it depend what you see as "being Amiga", either you see it as being purely the m68k machine and custom chips or it is the look and feel of a machine pushing the boundaries (as it was at the time). its going to take a heck of a groundbreaking device to appear to make a mark like the amiga did... and good software to back it up.
ARM-based Amiga, fine... if it can capture the "wow" that made me buy my first Amiga 20 years ago. I love the fact that I can browse the web on my "classic" which was around before the web as we know it but I think I'd rather see hardware that will attract developers and new users than something that satisfies a vigorous checklist about what an Amiga "should be".