The 23-year-old is out of contract at the end of the season and Juan Dios Carrasco said last month he was “100 per cent certain” his client would leave in January after playing just once in the first half of the season.
Montoya, though, has since started four of Barca’s last five games amidst reports the club are not keen on the idea of selling him.
Luis Enrique’s decision to start playing the stopper has pleased his representative, but not enough to change the established plans to depart.
"Since we wrote to the club, Martin has played four times," Carrasco told Cope. "This made us happy. We would rather he is on the pitch than on the bench or in the stands.
"But our idea is still the same and the player wants to leave.
"We are waiting for the club to select a new sporting director so we can speak with him and find the best possible solution."
Juventus have confirmed their interest in the defender, while Montoya’s agent has said other clubs in England and Germany are also in contact.
Fellow right-back Dani Alves also faces an uncertain future at Barcelona with his deal expiring at the end of the campaign and an extension yet to be offered. Summer signing Douglas is Luis Enrique’s other option in the position.