The 24-year-old has been heavily linked with a departure from Turin this month after struggling for game time this season.
Zaza was heavily linked with a move to join Slaven Bilic's East London revolution on loan in the summer but Juve refused to allow him to leave having only just signed him.
Speculation has been rife that Bilic remains keen and Alan Pardew is also showing interest with Palace struggling for goals of late, as reported by the likes of the Evening Standard.
Agent's game time hopes dashed
Back in November, Zaza's agent admitted there had been interest from Stoke and Watford but hoped his client would play more games in December to prove his worth to the reigning Serie A champions.
“There are many games in December and there will be more chances of playing. I think that at a team like Juve nobody, or almost nobody, can complain,” Maifredi told TuttoJuve.com.
“Watford and Stoke City? Now we’re about to enter the January transfer market."
But now Bild reports that there is also strong interest from Wolfsburg for the former Sassuolo man.
Zaza has scored three league goals in nine appearances for the Bianconeri this season but is struggling for starts with the likes of Paulo Dybala, Mario Mandzukic and Alvaro Morata ahead of him in the pecking order.