The South American turned down an offer from Real Madrid this summer and is expected to put pen to paper on a new deal with the Italian champions in the next few weeks.
"Vidal arrived in Turin and the move was met with some scepticism," Juventus club administrator Giuseppe Marotta said to Tuttosport. "But he has done very well and now he should be rewarded.
"There have been big clubs in Europe interested in him, but in the coming weeks, his contract will be prolonged and economically adequate."
The 26-year-old has attracted the attention of top European clubs following impressive performances in Serie A and the Champions League since arriving to Juve from Bayer Leverkusen two years ago.
Vidal, whose current contract expires in 2016, will see his wages increase to five million euros per year.
Meanwhile, Juventus defender Martin Caceres will undergo surgery on his right knee on Tuesday, the Italian champions confirmed.
The 26-year-old tore his meniscus during Uruguay's World Cup qualifier against Peru at the weekend.
A statement from the club read: "Martin Caceres underwent an MRI scan which confirmed a torn external meniscus on his right knee. Caceres will undergo arthroscopic surgery in the Fornaca Clinic."