Bayern Munich still has the strongest squad in the Bundesliga. And if the company can improve the understanding between the players, then Bayern Munich has a better chance of dominating the Bundesliga. Leverkusen, on the other hand, performed very well last season, no doubt with the help of Xabi Alonso. But Xabi should have taken the necessary measures to strengthen the team this season. Garcia and Terrier have been added to the squad by Xabi. However, this team is far behind Bayern Munich. I think Bayern Munich will dominate the Bundesliga next season even if they don't do well in the Champions League.
Actually Bayern Leverkusen as the defend winner have top qualities player too after defending all their key players and sign some top qualities players not big difference for both teams squad between Leverkusen and Bayern Munich.
Bayern Munich management is not well aware Vincent Kompany is not experienced enough. At the same time, the Burnley team did not perform well in the previous season, with Kompany helping out. However, since the Munich management handed over Kompany, they obviously have different plans. Otherwise, Bayern Munich would have appointed another coach. Also, we haven't seen Munich's performance yet. So I hope that with the help of KOmpany, Bayern Munich's performance will be stable in the coming season.
Leverkusen showed great dominance in the Bundesliga last season. The Leverkusen team was ahead of Bayern Munich by a big margin of 18 points. Leverkusen were also unbeaten in the entire season. The team performed brilliantly with the help of Xabi Alonso. But next season, it will be difficult to dominate the Champions League and the Bundesliga simultaneously. 2 seasons ago we saw Napoli become champions in Serie A. But last season we saw very poor performances from Napoli. I wouldn't be surprised if Leverkusen have the same situation next season.