De Bruyne, a £52million buy from Wolfsburg in 2015, penned a new £300,000-a-week deal last month that will keep him at the Etihad until 2023.
But the midfielder then plans to play in Major League Soccer after falling in love with life in the US.
Agent Patrick De Koster said: "I think Kevin will end his career in the USA rather than in Belgium.
"He has already been to America many times on holiday, and he loves the country and its culture.
"He said goodbye to his bachelor life in Las Vegas, and we have often spoken about him ending his career in the MLS.
"He hasn't yet had any offers from American clubs, because they know it is not worth bothering as he is at the peak of his career.
"Clubs in China will probably look longingly at him, but I can't see him going over to play there.
"But Kevin's only desire was to remain at City. He is incredibly happy on all levels, and besides he has just bought a house near Manchester that he is renovating."