One Piece episode 523 – “A Surprising Fact! The Man Who Guarded Sunny” – has aired in Japan and on onepieceofficial.com! If you note in the official English-subbed version we usually do not get a preview at the end of the episode. Have no fear though, as Anime Games Online is here with a video anime preview to episode 524 (Struggle in the Sea, the Demon of the Deep Appears) thanks to YouTube user MegaPizzaGirl123! English subs available!
Not only that, but check out a scan previewing the next episode, which airs next week on November 20.