Isn't that what Amithlon was? Maybe a better question is how much to get those legal problems solved.
Years too late would be my guess People - by which I mean the developer(s) - will have moved on. Then you'd still be faced with the fact that the OS is way out of date.
Just one of those things that wasn't to be.
For me, the insistence that I be forced to buy expensive hardware I didn't think was any good was what alienated me from the Amiga scene. Now, I couldn't care less as I certainly wouldn't go back and while I'd still take a look out of curiosity and nostalgia, that's not a good enough reason to spend lots of valuable money on a toy.
I do find arguments about Hyperion's "business model" rather hilarious though since I very much doubt that proceeds from AmigaOS4 total sales would have covered one year's salary for one full-time programmer - or even half that.
Not that it really matters any more.