It is interesting, maybe this means they do more moving now? I have never been moved and I don´t remember ever having gotten towns moved into my area, but I am nearly certain I got 2 new neighbours moved here yesterday, one Orc and one Faerie. I can´t say about lower chapters, I don´t think I would notice a new chapter 4 or 5 town (not sure they even bother moving those?)
But I suppose that would mean I am closer to the center part than the outskirts of the map and will never be moved, not that I mind too much, my neighbourhood is semi active at least
Others are far worse off than I am. If this happens a few more times that I get active new neighbours moved in, I guess my neighbourhood could become quite nice actually and there would be no more need to move whatsoever.
Geographically speaking it is strange because I am rather close to the Northern edge of the map (without actually reaching the wastelands. But I am rather central in East-West direction.