I think it will be completely Xavi Hernandez's decision for Sergio Busquets' future at Barcelona. He will continue to be in this team if he is still needed to help Barcelona. And also I heard that Xavi Hernandez is struggling to keep him speaking specifically to the management. That means Xavi Hernandez still has high hopes for Sergio Busquets to stay at Camp Nou. This is a pros and cons among fans, because many also think that it is time for Barcelona to let go of this loyal player.
If it is true that Xavi is building a long-term project with the young squad they currently have, then it is certain that Sergio Busquets will not get a regular position in the squad next season, let alone talking about the age of the players who are no longer young and only have one season left at Barcelona. It's good that Sergio Busquets accepted Inter Miami before taking the step of retiring.
When Barcelona financial condition is in a crisis stage, retaining players who are in the main squad makes more sense than having to let them go without any income for the club. Barcelona cannot bring in players in the January 2023 transfer market due to fair play, releasing Sergio Busquets will make it difficult for Barcelona when several of the midfielders they have are injured. Barcelona must be realistic in making decisions, especially since their financial condition is not good.
Barcelona's performance this season is not too bad, even though at the beginning of the first half of the season they appeared inconsistent, but over time they have almost found a much better game scheme, even though they are currently eliminated in the Champions League.
The financial crisis experienced by Barcelona has also been resolved slowly, even in the previous season's transfer market they bought several players in a bad financial condition, Barcelona still has good midfielders besides Sergio Busquets, one of them is Frenkie De Jong and Pedri, they only need to add one central midfielder as Sergio Busquets' position, there are several names that are being monitored by Barcelona as a replacement for Sergio Busquets, Ruben Neves, Martin Zubimendi and Edson Alvarez.