Do any of you really believe that Hyperion is going to allow AmigaOS4.x to run on any emulator (if they have any way to prevent it, technically, or legally)? It does not seem to be aligned with their market philosophy.
Why wouldn't they? Honestly, it sometimes seems like the Os4 community do everything they can to actively discourage new users.
At least MorphOS 1.x is still downloadable for free iirc. so that may be available to WinUAE users.