Ovidia’s answer to “At some point I'd love to see a family tree chart for Chen Su Lin's family. Is this a possibility?” > Likes and Comments

I hope there will be a present-day book in the series because I think it will be a pity if it ends after the 3rd book comes out this year.

So I guess Su Lin eventually marries and have kids, or the descendants are the children/grandchildren of her cousins (the little girls she helped her aunt take care of)?