Entertainment Weekly scored an interview with Mark Hamill on the occasion of his being announced for Star Wars Celebration VI. In the interview, the actor who played Luke Skywalker discusses Star Wars fans, George Lucas' retirement, and this:
EW: How has your own relationship with Luke evolved? Have you ever wanted to revisit that character? Luke was an interesting character because he evolved so much over the three films from kind of a whiny teenager into a self-assured and formidable Jedi Knight, so there was an arc to him. He really changed, especially in The Empire Strikes Back. Thatís probably my favorite because it was so cerebral and there was the spiritual aspect of Yoda. It was with mixed feelings, then, that I left the series, because, even though it had a beginning, a middle, and an end, I had only just become a Jedi when it finished. Itíd be like telling the story of how James Bond becomes a Double-0 agent, yet the story ends as soon as he gets his license to kill. Part of me always longed to do just one more film and see what Luke would be like now that heís on the level of Obi-Wan Kenobi, the student having become the master. But it was not meant to be.
"Part of me always longed to do just one more film." If only! Click through to EW.com for the rest of the Mark Hamill interview.