Wilkshire played a big role in Australia's World Cup campaign including a full game against the Italians who knocked them out with a last minute penalty.
The Aussie coach, who has now left his post to take up the Russian job thinks Luke can playe in a better league.
"He doesn't know his own possibilities because he is a modest player, too modest," said Hiddink.
"But when you see him playing (against Italy) he wasn't a star player but doing a very good job. This guy should play in a proper league, Belgium or Holland.
"He's a very good team player who can help players more in the picture do their job. If he asks me and I have contacts, then I will draw attention to him."