İlkay Gündoğan's performance is still quite good so it's only natural that many top European teams want him.
but on the other hand I think that İlkay Gündoğan's departure will not have a big effect on the Manchester CIty team, Pep Guardiola's team already has a very strong character, even if several players leave, it will not have a big effect on the team's performance.
He's already done alot for Manchester City, I really do think it's time for him to part ways with Manchester City. Barcelona have been linked already, and how they play really suits him as he will not find it difficult to adapt to Barcelona.
As for Manchester City, they already have the England forward Kalvin Philips, still making advanaces to Introduce Kovacic from Chelsea.
I really do think it'll be a done deal because Mauricio Pochetino has plans to recruit his own players especially for the midfielder's.
He's finally won the Champions League, now he can explore but no Saudi Arabian club wants him currently.