I’m willing to bet he was playing his cards close to the vest in that interview and they are already working on it . This film will be the big event movie that ties the streaming shows together and I am sure we will see Luke and his Jedi students in their prime against the forces of Thrawn . They hinted at it in this week’s Mandalorian when Bo Katan told Djin Jarin that he taught his apprentice well and he responded with " He didn’t learn that from me ." We saw Luke start to build his academy in Book Of Boba Fett and Filoni has said Grogu was away training with Luke for 2 years now . The Ai and deep fake technology is improving every day so my guess is that Luke will look even better by the time this movie hits . I’m looking forward to it .