I had a very lengthy discussion with the judge's aid. She told me that the MPF verified that the legal process complied with Brazilian law and that they didn't state whether the children should be returned or not. I'm not sure why the MPF made a determination of this in David's case.
I asked her if there was anything that could have been done to expedite the legal proceedings (now going on 3 years) and she replied that Brazilian law unfortunately allows for a party to constantly submit motions as a delay tactic. Apparently, the judge got tired of this and issued a statement that he would not accept any motions at this point except for the final argument (memorials in Portuguese). I am somewhat confused and could not get clarity because the judge made a statement on August 3 that said that each party had until August 13th to present final arguments. She indicated that it appeared that the Uniao was very thorough and timely in their responses to all of my wife's BS and delay tactics.
Anyways, the aid told me that to her knowledge, I am the only Hague Convention case in the state and there are no previous rulings from the judge to guess which way he would go. She indicated that a final ruling should come within 3 months.
Interestingly, she said that I could have spoken to the judge at any point during the proceedings, which is a complete contradiction to the response I received every time I notified through the BCA that I would be in Brazil and was willing and eager to speak to the judge.
I'm sorry that this is all the news I can report at this point.
P.S. The number that the OCI provided for me to call in Brazil was wrong. It was only because I speak Portuguese that I got the correct number.