It's pretty obvious City are desperate for Pep, for me this is why they will not sack Pellegrini, I'm sure it was said that Pep wouldn't go near a club that hires, and fires managers at the drop of a hat.
So they are probably trying to prove to him that even when times are crap they'll stick with their manager.
A bit of a risk by them if you ask me, they should be all over Klopp as I doubt Pep will go near, personally i'd imagine him seeing out his Bayern deal taking a year off, then coming to United.
Barca, Bayern, United it just makes too much sense, especially with LvG laying the foundations for him again.