As of late 2025, One Piece Pirate Warriors 4 has received its final content update. However, the term “exclusive” continues to evolve:
Ensure your Nintendo Switch is connected to the internet. The system will guide you through the update process when you start the game.
DLC is perhaps the most sought-after content for this specific title. Pirate Warriors 4 released multiple "Character Packs" (such as the Worst Generation Pack, the Soul King Pack, and the Land of Wano Pack) that added playable characters like X Drake, Urouge, and Kin’emon.