We will never know how long Leverkusen will be able to maintain the consistency of their team's play, but what is certain is that Leverkusen's presence or strength this season makes the Bundesliga competition even more interesting with the threat that Bayern will no longer be able to defend the Bundesliga championship title that they have controlled for so long.
Personally, I hope that Leverkusen is able to win the Bundesliga title this season and I am sure that this will make the Bayern team improve even stronger and that will have a positive impact on other Bundesliga teams in the future to be even better.
Leverkusen's consistency is such that looks like they are not giving up any time soon because they have been able to maintain it this long enough and at same time they have got some few time to rest across the Christmas break which means their coming back after the break, they will be still in good form having rested a while and be less fatigue prone.
One thing I really enjoy about the Leverkusen team is their team play spirit, it has been such that they don't rely or stay dependent on any player for them to be able to win a match or succeed at any point, they have good chemistry amongst them self and it seen in their style of play on the pitch. It will take Bayern Munich a good level of improvement to be able to defend their long held bundesliga title as they might lose it to Leverkusen this season if they keep loosing but then its really going to look really good and interesting seeing Leverkusen win this season.