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.
I don't think Galatasaray would be a logical choice for him, he is still a very high performing player who can play at a world level. He is a bit older but he will want to play at the Premier League level for at least a few more years. Maybe we can watch him in Türkiye in 2-3 years but I don't think that will happen at the moment. It wouldn't be right to make a choice that would cause such a decline in his career. If Galatasaray transfers a few world-class players, maybe the chances of such players coming will increase but it would be difficult for players who don't have a chance to be successful in Europe to choose