After what Dortmund did last season, i don't have any hope in them to stop the dominance of Bayern munich in the bundesliga, Dortmund is a football club that are comfortable with not winning, Bayern were bad last season, but still won the bundesliga because Dortmund gave it to them. They have now sold Bellingham to Real madrid, so their team is now much weaker than it was last season, because of this i don't think Dortmund has any chance for the bundesliga next season. Bayern's dominance will continue, until another team that's not Dortmund improves and stops it.
I definitely agree that the chances of Borussia Dortmund to Finale break the dominance of Bayern Munich in the Bundesliga were as high as never in the last decade or so and i doubt that the get another chance this big in the next few years. This year Bayern was very weak for their standards and i doubt that this will happen again in the next few seasons again.
I also think that maybe RB Leipzig may be the best candidate to Finale dethrone Bayern.