So, I am quite pleased to see that another volume will be out in time for SBL, this one on Colossians and Philemon, by David Pao. The volume weighs in at 480 pp. and is slated for an October release.
Incidentally, I believe that series editor, Clint Arnold is writing the replacement for O'Brien's WBC volume on Colossians/Philemon as well. Wow, talk about some big shoes to fill!