https://www.pcgamer.com/final-fantasy-15-to-release-four-new-dlc-episodes-next-year-including-an-alternate-ending/

Square Enix will release four new episodes of DLC for Final Fantasy 15 next year, including an alternate ending, it announced at PAX East yesterday.

The four pieces of DLC, detailed in this Resetera thread, will include an episode centered on Ardyn, one focused on the fate of Luna, one smaller side-story about the Starscourge and, in Episode 4, Noctis's "final battle", which will contain the alternate ending to the game.