This condition might also be a headache for Carlo Ancelotti because it's not just about determining the best decision but he must be truly transparent so that the decision does not give rise to assumptions among the players that might actually trigger jealousy and unhealthy rivalries.
No doubt Carlo Ancelotti is an experienced coach that have managed many world-class players in his years as a manager. But I think he would have a tough time selecting players next season. Almost every coach will be confused about choosing between talented and young players like Vinicius Junior, Rodrygo, Jude Bellingham, Kylian Mbappé, and Endrick. I foresee a situation where some of these players will be dissatisfied with the playing time they have and there will be agitation for more opportunities to play. A sign of this situation has already happened when Rodrygo was reported saying that he is open to leaving Real Madrid. Excess star players might also lead to conflicts in the dressing room which might result in some players leaving Real Madrid at the end of next season. The club should set up a conflict management mechanism and start setting priorities. Some players would have to be loaned out to other clubs while others might need to leave the club.