I don’t think he’ll want to sell at all, but based on the rumours that Mourinho has asked for him, the summer is out of the question, IMO.
For what it’s worth, I think Rashford could get to similar levels if played consistently as a #9 somewhere, and it’s a view shared by the England coaching staff.
From a romantic, anti-modern football point of view, I’d like Kane to stay at Spurs forever and captain a side that challenges every season, but he has to be paid properly.
I think it’s Alli who’ll end up at United.