When I went through a review last year I read that most people do keep it (90% or more). Mine was pretty fast; I sent my papers in, my therapist got a pile around the same time and we did those during a session and then after those went in it was only a few weeks until I got my letter that it was being continued.

I did read somewhere that they are going to start having reviews (and initials) see pdocs more often and not just base things on self-report/your treatment provider, so don't be too upset if they send you to someone. I can't imagine they can afford to send everyone though so hopefully you'll just slip through.

Good luck!