According to British media football.london, Son Heung-min returned to Tottenham training base on Friday after completing his family affairs. His future will be made after Frank talks with him.
Spurs' first-day training mainly involves blood tests and other related tests, followed by a 1-kilometer physical run, which usually makes the players feel tired. It may be too early to make a decision on his future. From Frank's perspective, he may want to first observe Son Heung-min's performance in training and then make a judgment on the player who has made great contributions to Tottenham and the Premier League.
This decision should be made by Son Heung-min himself. If he wants to stay here and fulfill the contract after ten years of playing for the club, then he has this right. But if he wants to transfer, then this possibility should also be considered. I believe the two will have a candid conversation, which we call "Frank" conversation.
In addition, it is not certain whether Tottenham contractually stipulates that Son Heung-min must participate in the tournament in Hong Kong and South Korea, but if they do not participate, they may face some economic penalties. This Friday will see its first press conference with Frank, where more information may be revealed.