Conte recently suggested that he would be interested in other projects and former Bianconeri forward Vialli has made it clear that he would consider a return to Turin one day.
"If Juventus were to approach me, I would certainly consider it," the ex-Chelsea boss told Tuttosport.
"But I don't expect that to happen to be honest. We have met in the past to discuss this possibility, but things never materialised in the end.
"I hope that Conte stays on. He has done a great job. Juventus should try and hold on to him, because it will be difficult to find someone else who's up for it.
"But I think Conte's comments are sincere. When you've won three Scudetti, you want more. We will now have to wait and see if he's still got the motivation to carry on."
Conte took charge of Juventus in the summer of 2011 and has since guided them to three consecutive Serie A titles.