On their schedule for the year it's listed to be a few weeks from now, so most likely when the manga goes on break again.
Also, this is pretty old but I finished both Film Z and Voyage 1. Both were very good; I keep repeating myself but the dub is still going strong and as good as the Japanese VAs are it really helps me enjoy the series that much more when it's adapted into my native tongue. It's hard for me to pick highlights because it was all very well adapted.
Though after listening to the Voyage commentaries I do kind of see what people were talking about before with Jerry Jewell. His commentary with Ian Sinclair had some amusing moments in it here and there but it definitely is not what I was looking for in an actual commentary. A majority of the commentary just consisted of sarcastic banter with only a few small snippets of Ian actually getting to talk about how he went about adapting Brook. I'm sure he's a nice guy and in a more casual context (like That Anime Show, for example) that kind of talk would fit right at home, but as an actual commentary it gives of an air of disrespect for me. It's especially apparent when put alongside the second commentary on the final episode of the set which featured Mike alongside three other castmembers. It was not only an entertaining commentary for its funny banter and the reactions to certain things in the episode, but it also was very insightful as the VAs aside from Sonny really got a chance to let loose about how they approached their characters.
I really enjoyed the In the Booth with Stephanie Young feature. So far the only other one that I've seen was Brina's but I felt like this one was even better because we heard both from Stephanie and the Audio Engineer (in this case, Kyle Phillips) and both had a lot to talk about when it came down to recording for the show. It was funny to hear how Kyle basically called recording with Stephanie the easiest part of working on One Piece because she pretty much plays the only character who isn't constantly screaming or bugging out.