Unrelated to the blurays, but these newly created (fan-made) HD DS9 clips posted to youtube make me drool...
While Tobias Richter undoubtedly is a fan of Star Trek, it seems there's more to it because his company The Light Works
is the one that provided the CGI footage of the big E-D for the TNG remastering!
The fact that he showcases what he has already created for DS9 in public allows multiple interpretations.
To me it would seem CBS hasn't yet decided (but if they're lacking VFX elements, The Light Works
could do the job as illustrated by these demo videos).