Yes we also are IR1 and in AP for 15 months. Wife is from Iran and interviewed in Ankara.
I only have one advice. If you are in AP for this long and you are from the middle east, you case will not go anywhere in the next 4 years(at least). At this point, Trump will win and all middle eastern will be put on travel ban again. So it is better to think about alternative plans. Either move in with your spouse or think about moving to another country.
I hope I am wrong. Good luck