My games are still spawning babies and the old townies get old and pass away, leaving their heirs behind. I think in one game, I have Bella's granddaughter in it, from when she married Moritmar. They had two children and they had children. I only remember this, because I saw Bella walking around holding a toddler and she was elder. I decided to change active households and it was her grand daughter. I kinda kept an eye on them through the generations and it has been really interesting. So I know mine are having kids, at this time, who knows what later will bring. I have not played enough of LN as of yet, to see how the spawning goes.