Someone from the LA will probably be there. In my case the autism outreach person came, class teacher (if they can be bothered getting a supply teacher in) the SENCO and DS's 1:1. No therapists. If they want to reduce provision you can disagree. Thankfully the autism outreach person seemed to be on our side and we never had provision reduced.
I used to take a written report of my views etc and hand copies around. You should get an agenda. Perhaps you could take a friend and volunteer that they take minutes? Otherwise the AR report is pretty formulaic.