Have you heard that Real Madrid want to sign Aurélien Tchouaméni? Tchouaméni is currently a hot topic and he is also a target for big clubs in La Liga. do you think Real Madrid need Tchouaméni?
I heard it but I am surprised with the transfer price for Tchouameni. It is too expensive in my opinion. In addition, with Tchouameni, Real Madrid will not get too much additional income from jersey selling, marketing etc. It is opposite to traditional approach of Real Madrid on transfer market. Usually they are ready to pay expensive transfer cost for star players who can help them to get good results and income from football and from marketing too.
For a long-term goal, they need someone who can substitute Casemiro. Tchouameni has the same position as Casemiro, he is a defensive midfielder. We know Real Madrid has Camavinga, but his main position is a central midfielder, not a defensive midfielder. Camavinga will be the successor of Kroos, and Tchouameni will be the successor of Casemiro. Now, they only need to look for the successor for Modric, I don't think Ceballos is a suitable player for it.
Casemiro is a good defensive midfielder. He is world-class midfielder in his position and he maintains his performance in many years. With Casemiro professional and his good record against injuries, I think he will play well in 3 to 4 more years but it is good if Real Madrid can prepare for his retirement.
Camavinga is a good replacement for Casemiro but he is even better than Casemiro in attacking. So I think Camavinga will be a replacement for Toni Kroos, not Casemiro.