Good news and does this mean Bayern Munich will return to dominate the bundesliga again?
Yes, that's for sure, because Munich is the only team in the Bundesliga that's focused on the title. 
Looks like we are just waiting for Dortmund's efforts this time whether the club will return to be a challenger to Bayern Munich.
Don't expect too much from this team. Dortmund is a business club; they don't focus on trophies but rather on managing their players so they can be sold at a high price.Leverkusen? Finishing in the top four is already a good thing for them, especially considering Ten Hag career.
