Netflix revealed production has concluded on the second season of the hit live-action series as of February 2025, and there are plenty of names returning from the first season!
Here's an official synopsis, via the streamer: Based on Japan's highest-selling manga series in history by Eiichiro Oda, One Piece is a legendary high-seas adventure unlike any other. Monkey D. Luffy is a young adventurer who has longed for a life of freedom since he can remember. Luffy sets off from his small village on a perilous journey to find the legendary fabled treasure, ONE PIECE, to become King of the Pirates! But in order to find the ultimate prize, Luffy will need to assemble the crew he's always wanted before finding a ship to sail, searching every inch of the vast seas, outpacing the Marines, and outwitting dangerous rivals at every turn.
There are a lot of big names joining for Season 2 as well.