The prospect of a "Princess Diaries 3" first came about last year when the movie's director Garry Marshall passed away and original cast member Julie Andrews had said that Anne Hathaway already "had an idea" for a third installment, reported Entertainment Weekly.
"(It) could happen, as we say. I am not allowed to say. I would love to sit and talk about (it), but I can't. I'm not allowed.
"But it's really more following the movie than the books, so if she - the last version I read, she definitely did not find out that she has a biracial younger sister...Which I personally would've thought was hilarious, but that was not the direction they were going," Cabot says.