But what could it be?
With AnimeJapan next weekend, one would have thought all the news would be released on Saturday and Sunday, but One Piece seems to be leaving their big news until the day after on March 28. The official Twitter account of the One Piece manga staff revealed today that "something will happen" on that Monday with an image of a folder labeled "Confidential" attached to the Tweet.
Speculation is rife for whatever it could be. One Piece has many different projects in the works right now, including a live-action Netflix series, an upcoming anime film, and many more collaborations. Whatever it is though, it's worth waiting a week for it!
Source: One Piece on Twitter
Daryl Harding is a Japan Correspondent for Crunchyroll News. He also runs a YouTube channel about Japan stuff called TheDoctorDazza, tweets at @DoctorDazza, and posts photos of his travels on Instagram.