Luka Modric is 38 years old and I think his time is about run out at Real Madrid by this season. I don't think there will be another extension of contract with him. Don't get me wrong. He is still playing really decently despite his age. However as long as he continues to be a part of the starting eleven it becomes a hindrance for younger talents to find more chances.
Modric's quality is very good. There are no players who can replace it regularly. So as long as he's still fit enough then I think it's not a hindrance. The management and coach certainly understand the condition of the players, so at this time Modric also started more matches from the reserves. Anceloti has understood that his age will not be effective to play for 90 minutes continuously. Belingham's arrival has helped Anceloti, and he already has a replacement. Although I think Belingham needs friends if it is true later Kroos and Modric