What is the influential Barcelona signature that no one paid attention to?

The Catalan media is talking about a player who may represent an influential signing for Barcelona, ​​​​the Bosnian Miralem Pjanic, returning from loan, who until recently was an outcast, and has no future within the club, and they see that he has real options to stay.
The technical staff considers that the player is making a remarkable performance, and he is currently “on trial”, as the reaction seems good, and coach Xavi did not hesitate to praise him after the end of the match with Juventus, where he said, “He has a unique vision of the game and an extraordinary technical ability.”
In addition to what Xavi may decide, other factors will play a role, such as Pjanic’s agreement to take a secondary role within the team, after he was important wherever he went, the economic situation of the club and the player’s suitability with him, and the possibility of the coach’s need for a player to leave if he stays.