Where I would have asked for a RAS, I will ask for a Deconfliction Service. The level of service provided will be subject to controller workload.
You can now ask for a DS even if VFR, while the RAS is restricted to IFR only.
Other than that, I don't see many substantial differences.
I think there will be more emphasis on the "take your own terrain clearance" bit even for Traffic Service (althought the pilot is entirely responsible for terrain clearance with a RIS, unless on vectors).
Once again, we're spelling out rules that already exist. It's a bit like now, issuing a VFR clearance, the controller needed to remind you "Remain clear of cloud and with the surface in sight".
We probably wouldn't have had these changes if it wasn't for the Ben Macdui crash, no surprise all over the new ATSOCAS it's branded a "joint civil and military initiative".