Hmmm what would I do if I owned the Amiga trademark... and some capital...
For starters some internet changes would be required, I'd buy A.org and have it redirect to AmigaOS.net and build a forum there where people could safely discuss Amiga NG. There would be no 'retro threads nor 'other OSes' threads, any detrimental talk about any other AmigaOS-like operating system or even the classic range would be deleted without warning by my moderation team. Amigaworld.net would cater for all that 'Noise'.
Whilst this 'cleansing' is taking place I'd then meet Ben Hermans and discuss how the remaining capital could be best invested to not only sustain, but improve OS development.