Couldn't really find a thread to put this so made it it's own, says Oda will be taking a month break after Chapter 597. Chapter 598 and on will be One Piece : The New World.
FINAL CONFIRMATION: BACK OF THIS WEEKS JUMP SHOWS NO ONE PIECE UPCOMING SEPTEMBER. ONE PIECE RETURNS ON ISSUE #44,SEPTEMBER 29Spoiler!
Picture Translation for One Piece's Part:
Editor's note: One Piece will be on leave for four weeks. The next chapter will be in WJ issue 44.
Oda: With the end of your serialization, I wish you good luck Usuta-san!
.. And I'm gonna go have fun and play. Wooot!!