How will not say that their last season performance is poor, but compare to the others club their performance is some how low and if they didn't improve before the next season I don't think they can go any where with that performance, but let wait and if they can able to bring a positive changes next season.
The Bundesliga will be more tough next season, obviously, because Bayern Munich will want to do everything to get back to their performance and maybe repeat the history that Bayern Leverkusen took over from them last season. Also, Bayern Leverkusen will want to get another Bundesliga title, which will make the competition more tough, and other teams will also come in very strong and be very competitive next season.
However, Bayern Munich performed poorly last season as far as the Bundesliga is concerned, though in the Champions League they were strong and competitive, but in the Bundesliga they were not. So let’s watch and see how they come in next. Maybe they will do the unexpected, but trust me, I’ll still look at Bayern Leverkusen at the top of the Bundesliga table next season.