Given the delicate situation, this is unlikely, and not even desirable.The Os requires a maintainer, not a bunch of hackers. Unfortunately, it is not exactly going to improve the situation by idling, as it currently happens.
Thomas, I have to disagree with you here. :-) I think the best thing that could have happened to the Amiga is if the OS had been open sourced early on. People could have forked it and then worked on whatever parts they wanted. Those changes then could be ported back into the main tree if deemed valuable.
I would even argue that had this occurred early on the Amiga might be in a better position today as there was far more interest in it years ago. Open sourcing the AmigaOS could have been an engine of change that sparked both software and hardware. There was a lot of interest in the late 90s and early 2000s when it was still considered viable. The Amiga community was the most valuable asset the machine had.
However, open sourcing the code now is just too late. You are not going to draw anyone into the community now just because the OS is now open. I can understand keeping your code locked up if you are doing development but just letting it stagnate for so long seems narcissistic. Sadly, it seems to be a recurring theme in the Amiga's history.
Just my opinion though...
-P