As for Dortmund, they may do well this season because Leverkusen is always their biggest obstacle every season, so you can see that since they are very competitive and they are rivals, they are not in good shape this season, but maybe it's their turn this season to top the league table after Bayern Munich.
Dortmund currently has a better squad than Leverkusen. They also have a more experienced coach than Leverkusen. So, Dortmund certainly has a better chance of competing with Leverkusen this season. Dortmund might even become Munich's strongest challenger this season. This is a great opportunity for Dortmund to knock Leverkusen off the runner up spot, and I can't wait for the Dortmund vs Leverkusen match in november.