Donyell Malen must be able to accept the situation and maybe he should try the challenge elsewhere. Currently, his new agency will definitely try to find a bidder who wants to sign him and I think Donyell Malen is also a pretty good player and as a striker or winger he has collected 5 goals so far with Dortmund.
Malen plays at a different position than Sancho and he is more like a striker, not like Sancho. Sometimes Malen is used as a winger but the striker position is more favorite with him. Sancho will have to make another important decision for his career, and again it will be related to Dortmund. When he was young, he decided to leave England and joined Dortmund, grew up there as one of most promising young star players. Now he has to think of Dortmund as where he revives his career after a failure in Old Trafford.
I feel like it would also be great for Dortmund as well considering how they are not doing that great right now, and adding Sancho to their squad would be great for them. I think it's weird that United is not using him, I have absolutely no idea what started all of this, but it is obvious that he is good enough to play there, there is not even a doubt that he should have been playing there.
Don't get me wrong, Garnacho turned out to be good, but he wouldn't even had a chance to show himself if Sancho was playing, because Sancho is easily at United level, and I mean like this United level as well. This is why I believe that we are going to end up seeing Dortmund be super happy to get him back, dude is a beast and would help them a lot.
I wonder if Sancho can perform like when he was in his golden days in Dortmund. Many people including me were expecting him to shine at Manchester United. But he was very far from the expectations. He was nowhere near that. His performance had been awful. As far as I can remember he was bought for around 90 million euros and those monies just went to waste if you ask me. I wonder if he can perform like his golden days. It is very sad to call it his golden days in the very early years of his career.
I think it is very likely what you told me about Donyell Malen would happen.