I have no complaints about the Sony DVD sets %u2014 they did a damn good job. Unless Sony comes up with worthwhile commentary tracks and bonus material, I see no need to double-dip.
Honestly, I think one of the bigger selling points of a Blu-ray release for this set was the two 3-D shorts, which ended up getting released in that format as extras (Courtesy of Bob Furmanek and Greg Kintz!) by Twilight Time. Of course, they are now out of print, and 3-D TV sadly died as a mainstream format. Don't get me wrong, a Blu-ray release would still be great, but I do agree the Sony DVD sets are top notch for that format!
Insofar as commentary tracks, my question is who would be best suited for providing commentary tracks, as at this stage, nearly all of the remaining supporting players have passed away? At the top of my head, I'm thinking Jerome "Curly" Howard's grandson could provide some. There is also the idea of digging into archival audio interviews (I'm thinking Moe Howard, mainly!) and integrate some of that dialogue into whatever appropriate film. Of course, Metaladams would also be a great choice for providing useful commentary!
But I'm getting way ahead of myself. Perhaps someday, though?
CHEERS!