My first and only question is literally:
WHY BOTHER?
To explain: Amigas are, as far as any market standard is concerned, dead.
The hardware of the old designs is deteriorating; that of the new ones overpriced and outdated. It is difficult to obtain a new Amiga too. I concede that the new design is sufficiently compatible to what is available to warrant some possibilities in upgrading, though.
The user base is very small, and will never reach the size the Amiga had at the end of the 1980's anymore. You will never make much money out of this group.
AOS4 seems to be locked in permanent beta and will, when going gold, never become more than a toy OS for nostalgic purposes. ('s Cool though, people like toys.)
The porting of any big program on the Amiga is a lottery these days. Progress is, despite brave efforts from individuals with bigger courage than myself, depressingly haphazard and slow. The Amiga will therefore have to make do with its own native software.
Any development tying in the OS or hardware to any other form of content (mobile, TV, audio, ...) faces competition so stern that the initiative is dead in the water before it begins.
Licensing the IP is also dead in the water as all of the IP has been surpassed by different and more powerful technology. (Can anyone show me an application where having a Copper is absolutely necessary?)
To put it in a single word: dead. So WHY BOTHER? That extends to this questionaire: WHY BOTHER?