Matt Giteau has left the door open for an approach from coach Michael Cheika to take on a formal World Cup role, although denies he has already been approached by the Wallabies coach.
Speculation had been rife Giteau was set to be offered a role as attack coach to replace the axed Stephen Larkham for the World Cup campaign.
But the 103 Test veteran said he had been surprised by the talk.
"I would be happy to help them but I still haven't been offered a formal role," Giteau told Fox Sports.
"But potentially I'd be happy to help the team in any way if I could help."
Giteau, who returned from France to play for the Wallabies at the last World Cup under a provision that became known as the Giteau Law, has dabbled in coaching with the Brumbies this season.
But he was unsure if it was a role he wanted to take on long-term.
"I definitely enjoy giving back," he said.
"Whether it's something I want to get involved in long-term, in a coaching capacity, I'm not too sure.
"When you feel you've actually added something to the player, or you've benefited the group in some way, then I feel good about it.
"It's just not really knowing how to pass my point of view on or certain skillsets that I like to work on, it's just a little bit of that, that probably scares me a bit."
Giteau said he had a good working relationship with Cheika.
"I owe him a lot," he said of the man who convinced Rugby Australia to pass the Giteau Law for overseas-based players with 60 or more Test caps.
"I was on 91 caps and I got an opportunity to come back and play 100 Tests and compete in a World Cup final, so obviously I owe him a lot in that regard."
Scots College director of rugby and dual international Brian Smith has also been mentioned as a candidate, along with Waratahs mentor Daryl Gibson and Rebels assistant Shaun Berne.