Dunedain didn't. They roamed and most made their home in the Rivendell when they were staying someplace. The Black Numenoreans also did not. They stayed in human cities in the south, but had no towns or cities of their own. Half-elves were so rare there weren't enough of them to have even a village of their own.
Many of them. It's called Demihumans many, few or none. There were a lot of vague populations without specific number. Those would include Dragonborn, Tieflings, Goliaths, Tortles, Loxodon and any others you want.
You don't need a dragonborn community to have deep ties to the area, populations, governments, factions, etc. And all without making anything up. You can have deep ties to Harpers, The Lord's Alliance, Zhentil Keep or wherever and whatever is already written.
In these kinds of remote locations, one can have small communities of different cultures coexisting near each other, even speaking different languages.
give me a hard example of what you who add, or subtract which would make your new setting unique. The realms has freaking everything. here are some my examples.
The ten towns don't share the same culture. And the loose confederation they form isn't really "the government." Each town also governs itself.
Side question to all this: are we only worried about the 10 PHB species or do we also want tabaxi nations, haregon villages, and the Triton population of Waterdeep?
I am not positing a setting. I am saying D&D 5.5 should have a setting made specifically for it. I think we can all imagine what sorts of elements might be incorporated intoa setting to make it unique while still allowing for "if it is in the 5.5 core books, it is in this setting." Settings I have created for 5E and 5.5E that fit the bill (all made for convention campaigns) include one where the gods have fallen to the earth and are powerful boss monsters, one where some species are local and the rest colonizers, and one in which the PCs are reverse dungeon delvers, returning looted objects to their proper tombs, vaults, etc.
That can be too. Tho I understand the Ten Towns to be one Human culture. At the same time, there are many immigrants to the Towns, including from other Human cultures.
Those things already exist somewhere. It's not hard to say that there's a Tabaxi village in High Forest, or a Harengon warren in plains east of the Wood of Sharp Teeth, and a large Triton city in-between Waterdeep and the Moonshae Islands.
