The participants (at least at a1k.org) are clear about the fact, that there are updates and bugfixes already in some drawer (thor...).
So one can assume the next to be available P96 will be different from the old Aminet archive and improved as well.
Nobody must pay as it will stay free of choice - like shareware.
On the other hand maybe the hardware vendors will have to get a license per device - we will see.
To publish a half open DDK would be stupid - J. has never been proved stupid so far (AFAIK).