This talk is just Raiola playing mind games, but De Ligt was always going to leave the club eventually. When he signed for us I promised myself not to get too attached to the player, because he would not stay here for more than a couple of seasons.
He seems like a very ambitious player who wants to achieve as much as possible in his career. I believe, aside from the financial perspective, he saw Juve as a place to develop his defensive skills and then move on to his next destination.
Although looking at his performances lately he still has plenty of room for development before he can claim he is ready to move on.
I still hope he stays atleast two more seasons, because replacing our whole central defence in the next two seasons would be brutal.