The next phase of this franchise has been slow in coming but the Love Live! official site revealed late last year that Love Live! Nijigasaki Gakuen School Idol Dōkōkai is in the works.
The series has Tomoyuki Kawamura directing based on the scripts overseen by Jin Tanaka while Takumi Yokota is handling the character designs.
The character for this were introduced back in 2017 as part of one of the app games Perfect Dream PRoject pieces that Klab Games worked on.