I'd be very surprised if we do sign him.
Personally not the option I'd've had at the club (but who am I?)
Yes he's turning 37 in a few months, but he's still a physical specimen. One of the greatest players of his generation, arguably the 2nd greatest player of all time. Would bring a step up in 'winning mentality', would score goals. And, if anyone can temper his worst tendencies then it's Pep.
Hasn't been a Utd player in well over a decade - let it go. Money aspect, eh.
As I say I'd be surprised, think there are much better long term options, but I can see the logic behind a move.