While the chances of them actually landing Jansen, who is 4th all-time in career saves, is not zero, it appears to be very very slim.
Jansen has stated that he would like to continue closing and the
Blue Jays appear to have found their ninth inning man in Jeff Hoffman. (Though, if you're Hoffman and you find yourself on the same team as
Jansen, you defer to the potential Hall of Famer.)