If Leverkusen can be able to hold on and get a point against Munich, then they can go the complete season unbeaten, and their chance of winning of getting point against Bayern Munich is high because they collected four points against Bayern Munich last season.
That will definitely be Leverkusen's next target against Bayern Munich and in fact they know that winning against Bayern Munich is quite difficult. The first meeting against Bayern Munich only ended in a draw and it is possible that in this second meeting the result will still be the same. But it is quite worrying if Bayern Munich wins and at that time Leverkusen will start to be overtaken.