The current Anzhi Makhachkala manager had previously suggested that he would retire at the end of the current campaign, but now says that he is open to a return to reigning European champions.
The Dutchman told reporters: "I enjoyed my time there very much. I was there almost half a year and in 27 or 30 games, we lost only to Tottenham Hotspur and in the rest achieved good results. On top of that, I really enjoyed working with the group of players.
"They have gone through a lot of changes. I'm the only man who wasn't sacked. I said to Dutch television that I might stop at the end of the season, but we have other options to go on with [Anzhi].
"And regarding other clubs, I'm 66 now and will be 67 in autumn. As long as I feel energetic and I'm not becoming an old, bitter, sour man, then I can go on. But I cannot predict where I am next season."
Hiddink spent three months as caretaker manager at Chelsea in 2009, winning 15 of his 21 games in charge.