I could definitely be onboard with the middle city - I was for some sort of retaliation settling as it's been labeled I guess and that city definitely works by me, so count me in.
We probably should make a plan for cleaning up worker actions/build orders though. I'm thinking the worker in Resonance should work on tiles shared by both the cities, perhaps a road through the hills first though, wherever we found the new middle city. It'll get the banana of course as soon as it can, and the second banana to the north after that. But I'd imagine Resonance would do all right with a whip or two, at least the granary for a 1 pop whip at size three and we'll see what we need after, shared tiles are great for keeping up production with whipping. (I might see a worker whip from Resonance as rather favorable too, after the granary though).
I'm happy to get another settler in Continuum, if we do that though I think we would be well served by the worker forest-chopping the plains forest hill to the SE of Continuum. We should be clear on health now (bananas) and the chop would speed up production - it can then farm wheat for Singularity afterwards. So I'm all right postponing the forge => granary whipping till after another settler is in place now.
One last thing I'm already sure is trouble is I don't recall if city trades can actually be offered as trades. I think, in the trade screen, that offering a city is only ever one-way. So we probably don't want to get to the point of a city trade, gifting the settler unit itself and then getting Cosmos back is a possibility though.
I do think, at least if we get 1 retaliation/intermediate city now, that we should regain an edge on controlling land. We can even build theatres eventually if we want, but Stonehenge/Buddhism is a good start on culture. We'll most likely have better developed cities at the least, once they start growing in population, CDZ has few workers/workboats around.