According to Amazon, the 73rd One Piece volume will get its North American release on January 6, 2015. It is available for pre-order on Amazon at a retail price of $8.99 (US). The respective volume will cover chapters 722-731 of the currently on-going Dressrosa arc.

722 – Royal Bloodlines

723 – Change of Plans

724 – Law’s Plan

725 – The Undefeated Woman

726 – The Riku Family

727 – The Hero’s Ambush

728 – The Number of Tragedies

729 – Warlord Doflamingo vs. Warlord Law

730 – Three Cards

731 – Operation Dressrosa S.O.P.

Other upcoming releases:

One Piece volume 71 – June 3, 2014 (Amazon, RightStuf)

One Piece volume 72 – September 2, 2014 (Amazon, RightStuf)

Note: Let’s hope this gives Stephen enough time to go through the past volumes for that one SBS question concerning Sanji and Zoro.