He's aged way more than 20 years over the last 20 years. If Sarah Strong signs elsewhere, I say he calls it a career once Paige graduates.
They never did specify what illness he was out with last year. But whatever it was, it aged him about a decade in a couple weeks. Makes me think he had a heart attack or a blood clot issue.
It was reported he fell ill while on a flight but they never confirmed what the issue was.