The Hunger Games: The Ballad of Songbirds and Snakes revealed what the Hunger Games were like before Katniss' day, and this opens the door to even better prequel spinoffs. Since the original series focused on the 74th and 75th Hunger Games, and Ballad of Songbirds and Snakes featured the 10th, there are still 72 unexplored Games that the franchise could potentially follow. Any of these could mean an interesting prequel, but the best feature of The Ballad of Songbirds and Snakes reveals which direction the next movie should go.

https://screenrant.com/ballad-songbirds-snakes-more-interesting-hunger-games-prequel/