Their main target is to return the title that was lost last season, then they will chase the title in the Champions League.
But besides that, I also still appreciate Leverkusen, because they can still perform well, yes even though not as good as last season. But overall I still think it is a good thing. Because for a club that first won the title, it will usually be more difficult to maintain performance. This also has a very big role from Xabi ALonso, because if he decided to leave when there was an offer at the end of last season, maybe Leverkusen would not have the performance like it is now.
With the Bundesliga title, everything is much simpler, I think that they will not miss their chance to regain the champion title, they have a great head start for this. And to continue in the Champions League, they will have to beat Bayer, the draw brings these rivals together not only in the domestic arena but also in the European Cups. Bayern is now stronger, I think that Kompany should move on, but he has little experience, maybe it will be difficult for him with Alonso.