As long as Erik ten Hag is still in charge of Manchester United Jadon Sancho will not return to Old Trafford. The club will do everything possible to secure a deal for him. The player will not be willing or free to come back to United because of his strained relationship with the Dutch coach. I believe that Sancho will have more good offers from other big clubs.
And Jadon Sancho also seems to feel comfortable playing at Dortmund because before going to MU he had actually been at Dortmund for a long time. So he will definitely be happy if in the end Dortmund will redeem him from Man United. Because in this transfer market, Man United no longer intends to loan Jadon Sancho out, but the club just wants to let him go. But fortunately Dortmund seems to be at the front of the queue to get this player.
Actually, I always don't understand why Man United doesn't want to use Jadon Sancho, whose quality we no longer doubt. And the problem may indeed lie with Erik Ten Hag. And it doesn't look like the two of them will ever get along again.