I don't how much has changed in the last 10 years, but a QM/OS merger sounds like a good thing. IMHO, the QM job was too narrow in scope to be its own rating, especially with the advent of GPS navigation. I guess they won't simply absorb QM into OS without a name change to go with it.
When I was in, I worked with guys that had been around for the split of the RD rating into EW and OS. That seemed to work out okay.
Do they still have AIC/ASAC or did they merge those as well? I was an AICS when I got out.