Borussia Dortmund's chance of lifting the German Bundesliga title since 2012 isn't gonna come anytime soon and I said that after considering how they squandered their chance on the of last day of the just concluded German Bundesliga season.
Bayern Munich for sure are gonna get reinforced for the challenges of the new seasons and they're already my favorites to retain the title again
History has proven that they are not too strong in every season because they continue to sell their star players so that their strength next season will not be able to provide much resistance in the competition for the title. In other words, Dortmund main business is to produce star players and sell them to other clubs, even to bayern munich, so there is no doubt at all that dortmund has to fast for the bundesliga trophy for a long time.
Next season Bayern Munich will make changes to their squad, especially Bayern Munich's management will buy good quality players to support their strength in the bundesliga. Tuchel is a great coach. I think he will be able to bring Bayern Munich to become a strong candidate to win the Bundesliga trophy again and it is unlikely for other teams to break Bayern Munich dominance.