He’s probably under a gag order. Next comes sentencing. I expect that Flynn will serve several years in prison for his guilty plea. Then the judge will tack on another five or ten years for attempting to revoke his guilty plea and contempt of court (attempting to remove the judge from the case and more). Appeals will be denied as part of sentence.
I think that you are wrong on both points. I was not impressed with the brief filed today and I doubt that the Circuit Court will think much of it either.