Reply from the proverbial "horses mouth" at RYA this afternoon
"Sector search can still be taught it will say search's you then choose depending on candidate ability
Exam can be done at same school as training but examiner will be independent - just like coastal / Yachtmaster
Intermediate will be there partly as you say but as Advanced will be raised a bit the gap will be bigger still so most people will need some additional help. Also we need to teach electronic nav and how to use with trad better as well!"
also i asked when they were up here a few months back and the situation was
Existing commercial tickets will have "grandfather rights"
Will there be a rush to gather the bits to endorse advanced tickets as comercial?- I wonder!