It seems that İlkay Gündoğan has no intention of going anywhere. Galatasaray wanted him very much, but after yesterday's game he made a statement that I have a contract for one more season and I'm very happy here. I believe I have a few more years at the top level, he said, which shows that he doesn't want to leave the Top 5 leagues.
If Manchester City decide to let him go again, his new club will be at least as strong as Barca. I don't think he will go to Galatasaray and I don't think City will give him to other Premier League teams either. He may struggle to keep up with the pace, but he still has a lot to offer. He didn't miss a game last season.
This is the same old "I am happy" here card that players and agents play every summer when there is talk of big moves. The post-match statement by Gundogan is textbook: do not burn bridges, keep the fans calm, keep the options open. You see, when he left City last time, the situation was practically the same: he was publicly loyal until the very moment when Barcelona announced him! City have recently spent heavily on new midfielders (Reijnders, Cherki, and others), and Pep literally said the team is too crowded. Gundogan is a legend, but if you believe that he is untouchable at City, history tells otherwise. Look at Agüero, Mahrez, Sterling, KDB, all gone when their time came
As for Galatasaray, they are not coming empty-handed. They are juggling with real estate money just to afford these superstars. And do not forget: Turkish clubs adore the story of bringing home the superstar. Gundogan is Turkish roots, his final major contract, Champions League football as the star. It is a very real offer, especially when City are happy to let him to leave for free to clear up $12 million in salary. Do not believe the initial quote in the media. See what happens when the talks begin to make the papers every other day. It is not Top 5 leagues. This is role, money, and legacy. What they say in the interviews is never enough