I will write here my toughts again as outsider (Atari user) as I follow Apollo core development as possible solution for Atari clones/accelerators (it is not in ussable state yet for us by my opinion).
I think the licences are not the problem for accelerators if it is not shipped to the user with preinstalled software which needs lisences. If it would come to the user with preinstalled AROS and user can change that to use AOS instead, it is up to user to take the risk of breaking licence.
If there will be a stanalone clone there could be more problems regardin that but this is to early to discuss that or better to say ... it is not productive at all!
The person who will invest the money into this project will take the risk of being sued because of violating any legal rights. And I believe that person will solve those problems before he will invest his money.
With this discussion here you are not productive, but you are destructive! Dont argue about the things you dont have to! You dont take a risk until you dont violate licences by yourself. If you violate licences, dont talk about that. It is that simple

Amiga community (and Atari even more) is so small that dont play any role in computer world (today), but you are thinking as you are big players. Nobody cares about Amiga and Atari except "few" enthusiasts. And Amiga or Atari wont play any role in the future again.
BTW. Apollo core has potential ... also to be commercialy successfull. But ...