Docket would never retire! But towards the end she's mostly giving instructions to Sophy while lying down. On the Docket/Biddy Smith question, this remains in a Schrodinger state.

(As does Clorinda/Sandy.)

However, Milord is never obliged to marry.

Julius becomes a famed horticulturalist and botanist. His friendship with Essie continues into their adulthood.

Revelations forthcoming about Hannah.

Sophy, by the way, marries Sam Jupp.