The whole "Manchester is Shit" thing is bollox, well mostly. This entire situation is due to Carlos cheating on his Mrs. She fucked off back to Argentina with his kids. They have since made up but she has vowed never to live in England again and this is the key to the entire saga.
I can't blame Carlos for missing his family and he understands that the entire thing is all his own fault. Imagine you move with your family to work in another country. You cheat on your Mrs and she fucks of back to Blighty with the kids. The country and City you cheated on her in isn't going to be rate very highly in her opinion now is it. I doubt it's Carlos who hates Manchester, It's his wife. So from the moment he cheated on his marriage, he was always gunna leave City.
Apparently Sheikh Mansour has told him he will understand if he feels he has to leave. But if Carlos thinks we will simply release a £40M+ player from his contract he is nuts. There has to be a player with like for like ability already lined up before he is allowed to leave. The wages are only an issue if he is unwilling to take a pay cut. If his family is his top priority he will take a cut without even having to mull it over.... Won't he?