The 20-year-old striker has had previous spells away from the club with Leyton Orient, Millwall, Norwich City and Leicester City.
Despite holding talks with Kane over another temporary move, Villas-Boas insists that the youngster has a future at White Hart Lane.
"At the moment what I've been speaking to Harry about is that we are studying the possibility of him going out on loan as well - but we are happy for him to try to compete for his place, and so is he," the Tottenham & Wood Green Journal quotes Villas-Boas as saying.
"We have lots of options up front and he understands that, but he is happy to continue to push for his place.
"He has been given that opportunity because he has been excellent in training, so we believe a lot in his future."
Kane has made four appearances in all competitions for Spurs so far this season.