I think the journey of bayern munich to defend their title is much easier for next season it because bayern munich will not gets decent opponents to fight for race title and why i am saying that because leverkusen as their strong opponent in the last 2 season is not strong anymore especially next season leverkusen lost Xabi Alonso and some of their key players such as Jonathan Tah, Jeremie Frimpong and the latest is Florian Wirtz which more likely will go to Liverpool so my prediction is leverkusen next season will struggle to find their consistency and i would not putting them as the candidate of the title
You should say that Bayern Leverkusen will not contend the title against Bayern Munich again since they will lose their coach and some important players but saying that Bayern Munich won't get a decent competitor will not happen because one of the teams might rise up against Bayern Munich just like Bayern Leverkusen stood against Munich last season. I still see potentiality in teams like Vfb Stuttgart, Leipzig, Eintracht Frankfurt and even Borussia Dortmund, one of them can still contend the title against Bayern Munich so the only team that might struggle will be Bayern Leverkusen unless they sign quality players that will replace the ones that are leaving and also find an experience coach who will manage the team as Xabi Alonso did.