"Rogue One: A Star Wars Story" will introduce a number of promising new characters to the famous franchise, including Jyn Erso (Felicity Jones, above), Cassian Andor (Diego Luna), Chirrut Îmwe (Donnie Yen) and several more. Just don't expect an encore performance.

During Sunday's "Rogue One" press conference at Lucasfilm's San Francisco headquarters, attended by multiple outlets including CBR, president of Lucasfilm Kathleen Kennedy emphasized that the first standalone Star Wars film will truly stand on its own.

"When we came up with this idea to do the standalone movies, what's liberating in many ways is the notion that we can come up with these stories inside the Star Wars universe that really have a beginning, middle and an end," Kennedy, who previously ruled out a sequel, told reporters. "They stand truly on their own, and this does."

When asked directly if fans should expect to see one of the new "Rogue One" characters in a subsequent Star Wars movie, Kennedy was succinct: "Doubtful."

This shouldn't be too surprising -- "Rogue One" takes place directly before 1977's "Star Wars: A New Hope," and given that viewers are seeing these characters for the first time, it's a distinct possibility that some or all of the protagonists don't make it out of the film alive. Of course, while a future film appearance may not be in the cards for the "Rogue One" crew, there's a variety of Star Wars-related media -- novels, comic books, animated series, video games and more -- where the characters could very likely pop up again.

"Rogue One: A Star Wars Story" is scheduled for release on Dec. 16.