Leverkusen can create a fantastic record this season, and I think this season will be a difficult season for them to forget because this season is the first time they have become champions in the Bundesliga with a record without defeats too. Xabi Alonso really made this club play extraordinary, despite their failure in the Europa League because they lost in the final match.
Next season they will be in the Champions League, and actually that's what I'm looking forward to. Even though we have seen their defeat this season for the first time, it still makes me curious about what they will show next season. Next season they will also get new ammunition, because I think Xabi Alonso also needs some additions to his squad to be even stronger. We'll see what they are like next season, whether they can show like this season, but I hope so.
Usually when a strong team that rarely lose, but they're lose in important match, their performance will keep declining and become mediocre (see Liverpool). Maybe Leverkusen will follow Liverpool's path since Leverkusen is one season wonder team, black horse team really rare can being consistent for more than one season (see Napoli).
The upcoming match DFB Pokal is against weak team, so Leverkusen will not have any problem, we will see their performance in friendly match.
Just like any other team can lose an important match so did Bayern Leverkusen, don't really know what happened to the team because they played differently from how they have been playing and winning matches this season but the kind of energy and determination shown by the Atalanta side was top notch and in the other way round, Atalanta isn't a small team because they were literally the ones that eliminated Liverpool out of the Europa league competition and it was still same 3:0 they won Leverkusen that they also won Liverpool with so Bayern Leverkusen was just unlucky and they didn't really gave in their all in that final maybe the way Atalanta played was difficult for the Leverkusen team to understand hence the reasons why they conceded early goals in the first half so it was rather two late for them in the second half after they made several attempts to score but all was to no avail.
Regardless that Bayern Leverkusen lost the final to Atalanta doesn't mean that they will start flopping next season and moreover, this is an European competition unlike regular domestic matches that teams are accustomed to each other so even though it was a surprise for them but it is what it is. Hopefully they can do better in the champions league next season.
Bayern Leverkusen may play the DFB Pokal aggressively considering the fact that they just lost a final so they will be more serious in the DFB Pokal so that they can add another trophy to the bundesliga they've won already.