You do of course realise that the example you give here is possible in the existing Class G (OCTA) airspace ?
Yes, it is. But under NAS the VFR traffic is discouraged from making broadcasts on their position and intentions (see also current issue of FSA and full page advert on "not making unnecessary calls"
).
Not only that, but they won't even be required to be monitoring the area frequency for traffic. They could be listening out on multicom, area VHF, local tower, the cricket or golden oldies.
