Southampton, the club he was on loan at, as well as Spurs and Chelsea have all been credited with an interest in the 26-year-old, while there is still the chance he will remain at parent club Atletico Madrid.
But speaking after his country's win over France at the weekend, Alderweireld revealed that he would be resolving his future after the final match of the season, which for him would be the European Championship qualifier against Wales on Friday.
“We will see what happens and I will make the right decision,” the centre back told Sky Sports. “The season is not over, after the last game I will know more and I hope a decision is going to be made quickly so I know where I am playing next year.”
The Belgian was a superb signing at the back for Southampton last season, helping the Saints to the second best defence in the league despite the fact they finished down in seventh spot.
St Mary's is due to host European football for the first time in several years next in the new campaign as a result, though Atletico have already decided to bring the former Ajax man back to Spain, though perhaps only to sell the player on for a higher fee.
Ronald Koeman is hoping the 26-year-old is open to returning to Southampton on a permanent basis, while Spurs are hoping to pair Alderweireld with their three other Belgian internationals.