Paulo Dybala will return to Juventus but as an opponent, yes it will be interesting. I want to see how Dybala responds when he has to deal with his former club. Of course he wants to prove himself that Juventus was wrong for selling him. Surely this will be emotional for him, considering he played 7 seasons for Juventus. We'll see what this player will do.
Juve didn't sell Dybala, his contract ran out and he didn't want to renew so he left for Roma as a free agent. He is not going to try to prove anything to Juve, he left the club in a friendly circumstance and i know all he has for Juventus is respect, and he too respects them, if he is going to play tomorrow, he is going out there as a professional to do the job he is paid for, it will be an emotional return for him to the place he called home, but that emotion will only be before and after the game, during the match only Roma will be on his mind.