If you’re looking for an advanced appellate educational program, check out the Appellate Judges Education Institute's Annual Summit, to be held on November 11 through 14, 2021 in Austin, Texas. In addition to its top-flight program, the AJEI Summit is an opportunity for appellate judges and lawyers to meet and socialize. For an overview of the program, follow this link. To see the schedule, follow this link.
For Louisiana lawyers, this page says that the AJEI is applying for CLE accreditation in Louisiana. I don’t know whether they’re applying for specialized appellate CLE accreditation.