Dortmund managed to overcome great pressure when entering the end of the season. Since being taken over by Niko Kovac, Dortmund has developed slowly until finally managing to finish in the Champions League zone. Traditionally, Dortmund is Bayern Munich main rival in the Bundesliga, with the depth of the squad they have, I think next season they will be able to rise again to enliven the competition for the trophy.
Jobe Bellingham will be a new sensation, he has the potential to develop into a great player, following in his brother footsteps. With the addition of this strength, Dortmund seems to be making it difficult for Bayern Munich to defend the trophy. If Dortmund changes its business model in buying and selling players, they will be able to break Bayern Munich dominance like Leverkusen once did.
Niko Kovac has really brought new hope to Dortmund helping them finish strong and get into Champions League after tough period which shows his great leadership. Their old rivalry with Bayern Munich could heat up again next season as Dortmund strong squad could genuinely challenge for Bundesliga title if they stay consistent. Arrival of Jobe Bellingham is also exciting. He has potential to become standout player like his brother Jude which would make Dortmund even stronger and signal their serious intent to challenge Bayern. If Dortmund can change their usual approach of selling top players and instead keep them or invest more wisely they might even break Bayern long hold on league much like Leverkusen did making upcoming season incredibly interesting.