i also think being able to upgrade the manor instead of having to build more would be a better option, so you don't have to fill an area with manors
i had a feeling it was planned, i was just playing and had like 5 manors and villagers kept getting stuck so i thought i'd mention just in case, also if i may suggest an NPC menu? so you can see all of the villagers and select them from one place instead of chasing them around? (if that is also planned sorry, just kinda popped into my head)