The injury-hit midfielder has been linked with Italy's AS Roma and Valencia after his Liverpool contract expired, and has also been suggested as one of Australia's three over-age players for the Men's Olympic Football Tournament in Beijing.
Kewell was the only established player in the team of Beijing-bound under-23 squad members which lost 1-0 loss to China in a FIFA World Cup™ qualifying 'dead rubber' on Sunday.
"I've been injured the last two times," said Kewell, referring to previous Olympics.
"I've got to sort my club future out first and if the opportunity arises, then yeah, maybe.
"The Olympics is only two weeks, but I've got to sort my future out first."
Kewell was coy about a possible move to Italy's Serie A and said he was in no rush to make up his mind.
"I'm on holiday for a week or so and then I'll decide my future," he said. "But for now I'm just going to relax."
"In this day and age, clubs take their time," he added. "There's a long way to go and a big process to go through, so I'm in no rush."
The 29-year-old winger has come through a month of four FIFA World Cup qualifiers to prove his fitness after a nightmare run of injuries during his five-year Liverpool career.
Asked if his performances might have helped secure his club future, Kewell replied: "You know what? I never came here to prove anything to anyone.
"The only person I really wanted to prove anything to was my old manager (Liverpool's Rafael Benitez), just to show him I can play.
"Other than that I didn't want to prove anything, I just wanted to go out there and enjoy myself."
Australia had already clinched their place in September's final FIFA World Cup qualifying phase while China had been eliminated.