One Piece is a series that honestly is very difficult to make his live action series, but one of the most popular series of Japan has been getting drama stage and Kabuki performances. As one of 10 projects to celebrate its 20th anniversary, the series will eventually be given live action TV series by Hollywood.
This live action series will be done by Tomorrow Studios who previously also planned a live action series from Cowboy Bebop. Producers Marty Adelstein and ITV Studios work together to realize this series.
Also note that the above picture is just a "representative" from Yuusha Yoshihiko, when this article is written still unknown as what it looks from its western live action.
Source: jurnal otaku