Kane either loses another yard of pace and becomes relatively much less productive, or he's one of those strikers whose guile lets him continue for many more years. I really can't tell which.
As for Vlahovic it'd be a real pity if Postecoglou got his hands on him. It's a shame Postecoglou has tarnished himself with a move to Spurs in the first place, as he is exactly the manager to get a song out of a talented striker with an ego who's been going to waste.