You really think that there's going to be that much of a difference? I once owned the Boulez/VPO M3 in a Japanese pressing, and I really didn't notice much difference at all. Regardless, I now own it on the SACD/CD hybrid version, which puts the CD side into DSD mode.
I suspect that UNI will eventual comeback to making hybrid pressings. If and when they do, I'm sure that the Boulez M8 will be a front-running candidate.
Barry