Oral argument in Tyler v. Hillsdale
Audio here. I found both sides a little hard to follow, but the judges who asked questions seemed inclined in a friendly direction.
Hillsdale involves as "as applied" challenge to the bar on firearms possession by those who have been involuntarily committed to an institution. The challenger was so committed, I gather 20-30 years ago, and is ready to present medical opinion that his mental problem is long gone. The 6th Circuit panel ruled in his favor, in an opinion that seemed unclear as to whether it was ruling "as applied" or on a "facial challenge," and the entire circuit took the case en banc.