L'aviateur, you (and others that have attended presentations) have repeated what you have been told, which is that the revised ATSOCAS will bring in next week lots of 'fundamental changes' beyond just new terminology and a more comprehensively-documented basis for the services, driven by a CYA mentality from service provider organisations. Many of us who have a very good understanding of the existing services and who have closely studied CAP 774 are extremely puzzled by that statement.
What would be really helpful is if we had a list of, say, the ten most significant changes from the old services provided outside controlled airspace, from a pilot's perspective, beyond name changes and legal small print. Bizarrely, the CAA have chosen not to provide us with any such a comparison, either in CAP 774 or in the CD.
Based on the presentation you attended, would you like to have a go at such a list? You'd be providing the pilot community with a great service if you were able to do so factually.