"They're talking to us," Hamill told "ET."
"George [Lucas] wanted to know whether we'd be interested. He did say that if we didn't want to do it, they wouldn't cast another actor in our parts -- they would write us out," he said. "We're in the stage where they want us to go in and meet with Michael Arndt, who is the writer, and Kathleen Kennedy, who is going to run Lucasfilm. Both have had meetings set that were postponed -- on their end, not mine. They're more busy than I am."
Hamill said he knows nothing for certain but suspects the new film will be about Luke, Han and Leia's children and grandchildren.
"Like my character would be sort of in the Obi-Wan range [as] an influential character," he said.
To be directed by J.J. Abrams, "Star Wars VII" is set for release in 2015.