Hey Djein,
I have mine expired already and I went yesterday to get them redone, my VO hasn't sent me anything since AOR2, I was going to send them before they requested them. Anyhow, When I got to the only physician in my city he tried logging on with both UCIs and File #s we have (the ones given on SA and AOR2) and it didn't let him log on. He explained to me that if he tried logging on with my name and passport number it would show my expired exams and when he tried logging with the UCI and File# it showed as if my application didn't exist. That it seemed as if my medical were still valid, they expired on March 7, 2016 , as he printed out the copy of my old Medical exams it had another expiration date, it showed May 7, 2016.
Long story short....wait until they send you the request to them, it's most likely that they actually expand your expiration date. I know it's hard to be patience and that you want to get that over with, but maybe your case will be solved before August or they might actually expand the date. Hope my answer works for you.