The third installment would be based on Ann Brashares' fifth and final Sisterhood book, Sisterhood Everlasting, which takes place 10 years in the future, when the four main friends have lost touch.
“The Sisterhood series is one of Alloy’s most cherished properties and we are looking forward to continuing its legacy with Sisterhood Everlasting nearly a decade after the first film was released, Alloy Entertainment President Les Morgenstein said in a statement. “The original film brought together an incredible group of talent who we hope to unite for fans once again.”
In the final book, Tibby tries to bring her friends back together for a trip to Greece.
In a reunion interview with Entertainment Weekly last year, the series' four leads, America Ferrera, Amber Tamblyn, Blake Lively and Alexis Bledel said they remained close friends after the making for the first two films. Ferrera indicated that she'd be interested in another film.
"The characters are all basically the ages that we are now," Ferrera said of Sisterhood Everlasting. "I know that the four of us would love [to make another film], and it would be wonderful."
"I can't quite put my finger on it, but there's something in the air about that idea. We'll have to see," Tamblyn said.