Neuer is very old now and that's why I think he won't be able to play like before even if he recovers from his injury. Goalkeepers can play for longer years than other football players, but their reflexes slow down and they cannot play as well as they used to. Currently, there are goalkeepers among the young goalkeepers who we can say are very good, but I am not sure whether they deserve the money paid to transfer them. I think the current goalkeepers are not playing well according to their value
It could be said that goalkeepers have more flying hours than outfield players. Neuer still has full trust from Bayern Munich and also the German national team to fill the main goalkeeper position. He still wants to play even though he is 37 years old, of course the physical strength and reflexes possessed by players of that age will decrease due to age.
Neuer prowess when guarding the crossbar reminds me of Buffon, these two players have the same characteristics, they can both maintain their performance even though they are old. Neuer position is still very difficult for other goalkeepers to shift, the negative impact of his consistent performance could hamper the regeneration of the goalkeepers for Bayern Munich and the German national team.
Neuer is an extraordinary goalkeeper and the model of today's goalkeeper that all coaches dream of today, where he can control the ball, doesn't panic, is mentally strong, has great leadership and can provide passes accurately. Every time you see him play, it's like seeing him as a reliable goalkeeper and defender who is not afraid to go forward. However, currently he is suffering from an injury, I am also not sure that when he returns to playing his performance will not be as good as before considering that he is no longer young, of course his reflexes will be reduced and will no longer be as optimal as before.
So it's true, as you said, that Bayern Munich really needs to regenerate, it's better if it's time for him to rest and give the young goalkeeper a chance. Because the backup goalkeeper rarely plays, this is almost the same as Buffon's backup, many potential goalkeepers are underdeveloped because they are always Buffon's backup. In the German national team there are also many great goalkeepers who rarely get the opportunity to play.