The Belgium international, 33, is leaving City as his contract expires at the end of June.
After Saturday's FA Cup final defeat to Crystal Palace, De Bruyne told Sky Sports: "I want to play good football, whatever the decision will be...
"I know you're trying to guess where I'm going to go, but I will make my decision, and you guys will know when I know.
"I don't know (whether I'll stay in the Premier League), it depends on what comes. Like I said to my Belgium colleagues, I have a family.
"I have young kids I have to take care of, it's a decision that has to suit all of us, not just me.
"When I'm 20 years old and all by myself, I can make a decision, that is very easy. But now it's a bit more complex."
De Bruyne added, "Of course. (You can expect to hear a decision) whenever I'm ready to make one. As long as I don't know, I can't tell you anything."
Asked about staying in the Premier League, he also said: "Maybe..."