AWB is waiting to speak to incoming Red Devils boss Erik ten Hag to see if he is in the Dutchman's plans.
The defender, 24, has endured a difficult campaign at Old Trafford.
He has started only 25 games with Diogo Dalot being preferred of late.
Crystal Palace, who sold Wan-Bissaka to United for £50million in 2019, would be open to re-signing him.
However, the Eagles are only interested in a loan move.