The franchise is considered concluded, with the Mockingjay films adapting the entirety of Suzanne Collins's final book.
However, there have been rumors and speculation about potential spin-offs or prequels:
* A prequel film focusing on the early days of the Hunger Games has been confirmed and is in development. This film is tentatively titled "The Ballad of Songbirds and Snakes" and is expected to be released on November 17, 2023.
* Other potential spin-offs or TV series have been discussed, but nothing concrete has been announced.
So, while a direct sequel to Mockingjay isn't in the works, the Hunger Games universe is far from closed. Keep an eye out for updates about potential new projects!