AROS will not be affected either, but it will also still not be close to be as usable as neither of the two others. MorphOS is Amiga done right! AROS may be a nice hobby for the involved developers, but from a users point of view, it's stumbling in MorphOS footsteps.
All in your opinion of course ...
I could argue that the only platform for which there is no investment made in new hardware is MOS. OS 3.x has Natami, FPGAArgcade; OS4 Sam460 & X1000 and AROS the iMiCA & the AresOne...
But I'm not going to

greets,
Staf.