For the Bundesliga itself, I don't think there are only three strongest team in the race for the title next season, don't forget Stuttgart, where they are one of the strongest ones here even though next season they will have to play without their mainstay player Sehrou Guirassy.
But I sure that every team will have alternative ways and options to overcome obstacles like this, Stuttgart will still be able to perform well and make it difficult for several team who will try to fight for the Bundesliga title.
Whether it Leverkusen, Bayern Munich or Dortmund, they will definitely be under pressure if they meet Stuttgart.
Stuttgart has become a new force in the Bundesliga after they managed to become runners up last season. Now they have become a team to be reckoned with in the competition in the Bundesliga. This is good news that we will see several teams that will compete in the Bundesliga and not just the two teams that we have seen so far, namely Bayern Munich and Borussia Dortmund.
However, the additional work for Stuttgart is that they must be able to maintain the performance they showed last season. The reason is that sometimes some teams have to experience a very deep decline after they were successful in the previous season. I hope that doesn't happen to Stuttgart and they can continue their good form.
There's a need for Borussia Dortmund to strengthen up its team after that they lost that champions league final game to Madrid, So I kind of think after playing that match they saw the need to try to step of it's team this season to get ready for this season's trophy challenge with fellow Bundesliga giant team right now, even now that Bundesliga now has 3 major contending teams on equal scale ,Bayern Leverkusen, Bayern Munich and Borussia Dortmund itself almost at same levels of performance.
The Dortmund management needs to bring in more quality players to strengthen the performance of the team after failing to win the Champions League trophy last season against Real Madrid and not getting the opportunity to be among the teams to be present in the champions League competition next season. The Dortmund team has suffered a lot of set back lately despite the quality of the players in the team and right now since they won't be involved in many competitions next season they need to bring in more players to strengthen the performance of the team and get ready to face the challenge for next season sin e Bayern Munich team and Bayer Leverkusen will be challenging for the league title next season.
They must immediately forget their defeat in the Champions League final, they must use this as motivation to be even better in the future. It's also useless if they lose and they can't improve their shortcomings, because maybe they will experience even greater failure.
Borussia Dortmund is a team with huge potential to become the best team in the Bundesliga or even in the Champions League. But they have to improve their way of building teams. In fact, they have a lot of talent and ability, especially in developing young players, but unfortunately they cannot utilize their abilities to the fullest so they look like an ordinary team.