His bad performance this season may be caused by his low motivation to play. I am sure he is very disappointed with Tottenham management. In the previous transfer window, he really wanted to leave. Unfortunately, Tottenham management didn't allow him to leave. That situation must influence his mood in playing, he didn't play with a good motivation to score.
Yep, He wanted so badly to join Manchester City and he almost missed the preseason because he does not want to train for Spurs anymore.
I think he will go to Manchester next year and Tottenham will go for Vlalovich, already wanted from Paratici at Juventus.
I don't think yet Manchester City still opening opportunity for Harry Kane despite his bad performance in this season, less than 14 match Harry Kane only one scored and make Pep Guardiola looks not interested, better try to get Haaland have more productivity and created many goal in this season, how ever Haaland is the best investment for the future and still at young age.