Actually, Leverkusen performance this season hasn't been too bad, they are still considered successful in the context of making the Bundesliga trophy rice competition remain competitive, so it's not easy for Bayern Munich to dominate again. Repeating the success of last season is very difficult, as it requires a lot of luck. Regarding Leverkusen chances of defending the trophy, I think the chances are still open, it's still possible to close the 6-point gap. That's right, we also shouldn't say too early that Bayern Munich will win it this season, because there's still a possibility that the situation could change in the remaining 6 matches.
Even if Bayer Leverkusen fails to win the German Bundesliga this season, they've succeeded in making the league very competitive unlike what we used to see before last season when Bayern Munich were dominating and winning the league with five or six games to spare. Xabi Alonso have done incredibly well in improving Bayer Leverkusen over the last two seasons and making them a top German team. They really tried their best to retain the German Bundesliga title this season but I don't think they'll be able to achieve that at the end but regardless, I'm very proud of their achievements in the last two seasons.