For Sancho there may be no better place than returning home and Dortmund are very open to his arrival. Dortmund are even willing to cover his salary if he wants to come because it is rumored that Sancho will only be loaned by Dortmund for one season.
Sancho was back in the days a very good Player in Dortmund , and i would be loving it to see him playing again for Dortmund.
With his playing style he fits into the squad to 100%. I readed on SkySport also that he will be only loaned to Dortmund.
Maybe there will be an option in the contract to get him full when the next summer transfer will be open.
He has shone at Dortmund and of course Dormtund is not a foreign place for Sancho if he returns but when it comes to performance I think there is still no guarantee whether he will still shine or not in the end because after all this still needs proof to show Sancho.
He has not played for Manchester United for a long time since he last played in August last year until now when his problems are getting complicated with Manchester United he has never even felt the grass of the field in a match.
This will definitely disrupt his situation on the field and interfere with his performance because after all after a long time not playing must require re-adaptation in this case especially with a new club even though Dortmund is the club that raised his name still there will definitely be a habituation again for him to be consistent again as before when he was seen as a wonder kid at Dortmund.