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.
İlkay Gündoğan have had a great time in Manchester City over the years,even at his age he had won the premier League back to back and even the Chiampions league for Manchester City. Gündoğan might be old but not out of shape, his experience alone is still very valuable to Guardiola and the team. Letting a valuable and experienced player like Gündoğan out of the team wouldn't be a considerate ideal for PEP Guardiola. I still believe Gündoğan still has a lot to contribute to the development of the team for Guardiola and wouldn't be allowed to exit the club until his contract expires.