Mark Hamill and the late actor Carrie Fisher (through unused footage) will return in Star Wars: Episode IX. JJ Abrams, who helmed The Force Awakens, will direct Episode IX. The film is scheduled to be released in December 2019.
Mark Hamill put up a picture of Darth Vader with the caption, "#HappyFathersDay." It is a truth known across the galaxy that Darth Vader, probably the greatest villain in Star Wars' history, is the very definition of a bad father.
Mark Hamill has also managed to pique James Gunn's interest, who has said that since Hamill lives near his place, he can come over and they can talk about Guardians of the Galaxy Vol 3 over a cup of coffee.