The national team boss is looking forward to leading his players against elite opposition when the festival of football kicks off in South America next year
Chile, the Netherlands and holders Spain will be Australia's opponents at the FIFA showcase in South America, raising the prospect of an early exit for a team in transition and under new management.
Postecoglou acknowledged the enormous scale of the task facing the Socceroos, but he also said he believes they are capable of doing more than just making up the numbers in one of the tournament's toughest pools.
"We're going to see some good football, that's for sure, in our group," he told SBS.
"Some fantastic footballing nations and great history. Our job is to play our part. It's an enormous challenge for us. But for a nation like ours, that's exactly what we want. We've got a chance to make some headlines when the World Cup comes around.
"For us, we have some real, immediate challenges to face with the quality of these teams. The beauty of it is they all play good football. We know what Spain are like and the Dutch have always played good football. And Chile, in this qualifying campaign, have been outstanding. We want to keep growing, we want to keep getting better and that's our measures. We'll certainly go out there and give our best, for sure."
When asked if Australia's players will be capable of rising to the challenge of taking on the likes of Spain and the Netherlands, Postecoglou said: "They wouldn't be one of our players (if they weren't) looking forward to this immensely. To play the world's best teams, that's why you go to a World Cup. As I said, there's chance for us to make some headlines ourselves.
"Everyone will be writing us off in this group, which I think is logical. But from our perspective, we've got some great opportunities to show the world we can play some good football, against the best nations in the world.
"Our group looks the most difficult group, but I hope it's the group that plays the best football. We'll play our part in that."
Having been drawn in Group B, Australia will play their first match in the in-land, central city of Cuiaba, followed by games in the southern cities of Curitiba and Porto Alegre, with Postecoglou pleased to avoid the searing heat teams playing further north are expected to experience.
"Obviously there was some challenges in playing up north in terms of distance and the climate," he said.
"We've kind of avoided that, which I guess in one respect is good. We'll do our preparations, we've been here now for a few days. From now on, our job is to make sure that we're absolutely well prepared for the tournament, prior to the tournament and then during the tournament, ensuring all our organisational stuff is done well."