The Dutchman will return to his post as Russian national team coach after he leads the Blues to this weekend's FA Cup final against Everton but says he may back in England before he retires.
"When I finish here I will do something different, not in the flashlight of football as we are now," he told the club's official website.
"I could not keep that finish so I won't promise it anymore.
"Of course I will miss The Premier League. I have seen it from the inside now, which means it is a very attractive league.
"Working from the inside I have enjoyed almost every minute of it and in a great club."