When does Esio Trot return?

Esio Trot is the last of Roald Dahl's books to be published in his lifetime. It is the story of an ageing, lonely man (Mr Hoppy) trying to make a connection with a person that he has loved from afar. In 2015 it was adapted by Richard Curtis into a BBC television film, starring Dustin Hoffman and Judi Dench as the couple, with James Corden narrating.