The 64-year-old saw Turkey draw 1-1 against Belgium in Brussels on Friday to stay third in their Euro 2012 qualifying group, from which they will struggle to qualify.
Turning point: Chelsea could make move for Guus Hiddink after Turkey's qualification hopes were dented by Belgium
But with Chelsea owner Roman Abramovich desperate for the Dutchman to return to Stamford Bridge after his brief spell in 2009, Hiddink admitted that his future is uncertain.
Hiddink said that his spell at Chelsea was a 'beautiful time in my life' and smiled when he was told by Englishjournalists that captain John Terry had expressed his pleasure at a possible return for the man who took the club to an FA Cup triumph.
Blues brothers: John Terry took time out of preparing for England's Euro 2012 qualifier to welcome the possible return of Guus Hiddink to Chelsea
'Is he the president of Chelsea now?' he laughed.
With Turkey not playing again until September, Chelsea are expected to ask the Turkish FA to release Hiddink from his contract.
Asked if he would ever manager Turkey again, Hiddink said: 'I can't answer that. Everything is fluid. My time at Chelsea was a beautiful time. Everybody knows that.
'I still have a contract with Turkeybut at my age when some issues come up, you always have to talk about them. At my age, most of my story is behind me.'
Hiddink was tetchy when asked about his future by Turkish journalists but softened noticeably when approached later in the Heysel Stadium by English media.
'I hope youunderstand that this is difficult and I need people to respect that,' he added. 'I am going on holiday now and I have a plane to catch.'
Terry would certainly be delighted were Hiddink to return.
He said: 'He would come in and hit the ground running. He knows what the players are about, what our strengths and weaknesses are and the training schedules.
'Everyone would say the same thing. He's a good guy. The players completely respect him.'
Hiddink spent three months at Chelsea between the sacking of Luiz Felipe Scolari in February 2009 and the arrival of Carlo Ancelotti in May.
'He brought a lot of stability,' said Terry. 'He was understandable and approachable as well, but, no one messed with him.'
No messing: Abramovich was impressed by Hiddink's ability to steady the ship at Chelsea
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Explore more:People: John Terry, Roman Abramovich, Luiz Felipe Scolari, Carlo Ancelotti Places: Brussels, Turkey, Belgium