Huth is weighing up whether to commit to a new deal ahead of the summer market.
"I've told him to get his contract signed," Wilkinson told The Sentinel. "He can stay here and be a legend... if he's not already.
"He's a top-class player. Even in training, if there's a 50-50, he's the one person you wouldn't want to go in with - not that I'd pull out. From a fans' point of view, he is everything Stoke City is."