As long as they are good enough in attack I don't think there will be too many problems in Neuer's absence. This is not the first time he has been absent at Bayern because previously in the past few months he was also absent in the bundesliga and Champions League and had to be replaced by Ulreich but that is still very good, even now it will still be like that I think especially they still have the best defense vision is to attack .
Bayern Munich is a team that is very experienced in the Champions League and also in the Bundesliga so it will not be too affected by the absence of a player even though that player is a player the team has relied on. And now it is still being seen as proof that Bayern Munich is still at the top of the Bundesliga standings and is expected to be able to give a better surprise in the Champions League this season.
I also follow to think that Neuer's injury is over blown. If Neuer happens to retire or resign does it mean that Bayern will not find replacement?
On a very good day that Bayern team is very strong, the goalie doesn't see much ball to save.
What Bayern needs is just a keeper that can play with his legs to suit the playing pattern of Bayern.