If Leverkusen can play their best performance in every match the way they have done so far, then they might be able to compete with Bayern Munich. Leverkusen will face Bochum in their next match and we can say for sure that Leverkusen will win easily in this match. And if they can collect three points by winning this match, then they will be able to get close to Bayern Munich in the points table. Moreover, since Bayern Munich is currently in the first position of the points table with 62 points, and Leverkusen has 56 points, there is only a six-point gap between the two teams at the moment. If Leverkusen wins the next match, there will be a 3-point gap, and there may be a more exciting fight in the Bundesliga from next week.
One thing you might notice is that Leverkusen's performance last season is not the same as their performance this season, their performance has dropped a lot. On the contrary we have seen Bayern Munich perform better than last season and they are trying to perform better and already we can see Bayern Munich have a good point gap with Leverkusen. As you said if Leverkusen perform well then they can get back to the top of the points table but it is difficult to perform so well all of a sudden as it is to reduce the points gap. Bayern Munich seems to be the favorite for me to win the local league title this season and they are very likely to win the local league title at the end of the season. For the time being I would place Leverkusen second in the points table based on performance.