All this is second-hand, but an attempt to help.
According to the CFI at my Club, the two main speakers were Sqdn-Ldr Nick Willcocks (VC10 pilot, RAF and CAA Examiner/Instructor) and Mr Tudor Owen (aka Flying Lawyer)
Sqdn-Ldr Willcocks, an expert on these things, gave a well-informed and detailed update about the proposed National PPL. Audience views were on balance in favour.
Mr Tudor Owen was a "fantastic" speaker, and gave an entertaining and very informative talk on personal liability of instructors and examiners, with examples of how a successful negligence claim could financially ruin a 'roving' examiner or an employed examiner who didn't have an indemnity from his Club/School. He raised many issues which most people had never considered, and advised how exmainers and instructors should protect themselves. There were so many questions that this part of the meeting was extended.
All second-hand - but I hope it helps.