There is alot of people in your situation. It's a fight for sure. I would expect the worst honestly, they are not out to make things fair but to save the government money. I'm at 26 months since submission. Adjustment Disorder with a History of PTSD and mTBI residuals was my Admin Sep discharge diagnosis.
June 2016- submitted file
July 2016 - given case number.
May 2018 - Given an AO I did not agree with.
June-Aug 2018 - Finally found a way for the ABCMR to recieve my response and SSA/DoD/German Medical docs sent.
Aug 2018 - Was given a number to call for updates. Message me and I can send it privately.
Now I wait for the ABCMR to actually board my file and render decision so I can move onto the next stage and do the Fed Court stuff. I dont know how long they have to board it or how long it will take for me to receive said decision. They gave me 21 days to respond to them, I'm sure they from how things go I wont get a response till next year. Best of luck to you in court. Wish they had a lawyer that would take all these case for after 2008 for PD/AD diagnosis and do a class action. Good luck to you though, hope you get a fair chance and get what you are fighting for either at the board or court.