Des:
It's always interesting to get some insight from someone that is distanced a bit from our process. Seriously, it is!
I have had a similar idea, except with non-profits instead of new commercial vendors. After talking with some fellow citizens, I noticed some of the plots in NFS (CN to a lesser extent) seem to be empty except for a structure and some furnishings. A thought that was kicked around was to create a group of people who would allow a non-profit to use the space of their house to create an in-world or CDS presence while maintaining the host's citizenship by virtue of land ownership. It was an idea that never really took flight, but sounds similar to your idea.
I think that it would benefit the CDS to a large extent to reach out and support new artists and creators to the point of subsidizing land for a period of time. I'm not necessarily suggesting the CDS government do such a thing, but I'm sure one of our existing NGOs or a new group could create and manage such an artist enclave effectively.
--Brian