Though the new commentary will certainly do much to pique folks' curiosity (mine included). For most people, it'll largely come down to final word-of-mouth, and what the reviewers' verdict ends up being.
This latest from DVDJournal.com...apparently MGM are going to be releasing a brand new, two-disc "Collector's Edition" in November:
So...a new Singer/Spacey commentary, and a "new featurette"? I'm quite happy with my 2002 limited edition (the one with the "sunset orange" outer-sleeve) and all...