I talked to a DOT guy recently and he said they didn't seem too concerned with the crew duty day, international reserve, poorly qualified new hires, or other serious problems. He seemed to think that the FAA was more concerned on the big decline in pilot training starts for US citizens. Wondering how the country is going to staff future cockpits and convince kids to spend $100k to get a $20k a year job.
He seemed to think that the solution that would be approved was to allow foreign pilots in the country on work visas since there would be a shortage of US citizens pilots will to work for low compensation. Sort of like crop pickers.
I will be very surprised if the FAA does anything meaningful, and not just a smoke and mirrors job that effectively does NOTHING.