There's no chance at all of Amithlon being resurrected, or of a successor coming to market. The legal disputes with H&P and Harald Frank seem to have worn Bernie down to the point where he has no interest in getting involved in the Amiga market ever again -- and having been on the recieving end of Mr Frank's vitriolic bile myself, I understand that completely. Even if by some miracle he was willing to give it another go, you can bet Hyperion and Eyetech would, perhaps not unreasonably, push hard to convince KMOS to say no.
I've been a huge fan of Amithlon, devoting many months worth of spare time to producting updated kernels and drivers for it, but its day is gone. Increasing hardware power means WinUAE/AmigaForever is a good enough OS3.9 platform for 90% of people these days. There are no longer enough potential buyers or developers to support another Amithlon-style product.
AmigaOS these days means UAE or an AmigaOne, and I don't see that changing any time soon.