The official One Piece website has finally revealed the cover for volume 73 for the One Piece manga series.

The Volume will be called “Volume 73: Operation Dressrosa S.0.P.” and will be on sale in Japan on March 4th.

Considering the announcement that’s written along the cover on the picture you can see here, I would guess that the volume will cover chapters 722 to 731. Though don’t take my word for it, it’s only a guess!