What would it take for Julie Andrews to return to 'Princess Diaries'?

Anne Hathaway previously confirmed there was a script for a third 'Princess Diaries' movie HOLLYWOOD, CALIFORNIA - JUNE 09: Julie Andrews attends the 48th AFI Life Achievement Award Gala Tribute celebrating Julie Andrews at Dolby Theatre on June 09, 2022 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic) It's been 18 years since Mia Thermopolis and her grandmother Clarisse Renaldi graced our screens in the Princess Diaries series, with Anne Hathaway and Dame Julie Andrews bicker...