With the current form of Bayer Leverkusen, I don't think they have any chance of meeting up Bayern Munich and this is not even because of this win, Bayern Munich seem to be a lot better compared to what they performed last season although till can't compare to the bayern of old. This night win against Leipzig is a show of championship and it tell how serious and ready Bayern Munich are in winning the bundesliga from Leverkusen.
There are still many game weeks to go and a lot of things could change things could go totally bad for Bayern Munich and on its tweets become all of a sudden very good for Bayer Leverkusen. The point difference between Bayern and Leverkusen is not big and if Bayern Munich will win the Bundesliga will depend on how well they can stay in form until the end of the season and how well the coach can manage the team, to prevent injuries to key players. With Bayern Munich's win today, Leverkusen will be very inspired to get their own win against Freiburg tomorrow.