It won't happen, and I'll give an example of the reason why. Currently the rights to ancient games (talking Atari 2600, Coleco 'ancient') are being bought up for the mobile market. Simple games with limited system requirements will always have a place in modern technology, even though while today's mobile technologies (mobile phones for example) are becoming more advanced and will someday be able to do handle more advanced software, all the old software will get its place on whatever new gadget fills the spot that mobile phones once had.
Amiga ROM to free use on the Internet *could* mean a loss of rights (maybe some, maybe all) to the operating system, and that may or may not include more recent released. The way things are currently, everyone is holding onto software IP like it is solid gold, which may or may not be a good thing to do (I personally hope software IP gets done away completely, it's a stupid idea - patent/licence software implementations, not ideas), but that's the way it is.
I was about to say that I felt the better approach might be for Amiga Inc to just turn a blind eye to unlicenced use of Amiga 1.x kickstart ROMs, but they can lose their right to defend it in cases of their choosing if they do that.