Real Madrid will definitely need a suitable replacement for Benzema if they want to be La Liga champions next season. Without a suitable replacement for Benzema, Real Madrid's chances of winning La Liga are very low. Because Barcelona are in very good form. Xavi is trying to strengthen his team this season. On the other hand, the Real Madrid team has become weaker after losing Benzema. Despite having talented players like Vini, Rodrygo and Joselu in the squad, Real Madrid need a stronger attack if they want to stay in the title race with Barcelona. Barcelona will probably dominate La Liga next season if Mbappe is not included in the squad.
It is true that Real Madrid really needs the right figure to replace Benzema, but for now there is no sign whatsoever regarding the striker who will be recruited in the remaining time of the transfer market. So far there has been no official offer from Real Madrid management to any club to get a striker, if you expect Mbappe with a free transfer status it is very unlikely.
Even if Mbappe goes to Madrid on a free transfer, it will happen in the 2024-2025 season. This means that for the 2023-2034 season, Madrid must be prepared for all possibilities. It could be that Madrid will end the season without any trophies because they don't have the right striker to replace Benzema role next season.