Leverkusen is playing amazing football and there is a possibility that they could win it this year. I am not saying they will, I am just saying the possibility is there and not like there has been just a few games, it's been plenty of games and they are still ahead, so it's quite possible. Bayern of course is following them in a Bayern fashion, they are not too far away, just 2 points if I remember correctly, so one game difference and Leverkusen could lose the top spot in a single week. However, they could also get it back too, and that's why I believe that it is going to be quite strong period.
It's natural for you to say that, because it's clear that Leverkusen have proven that they are able to survive so far with a very tight level of competition, I think this is a strong indication that will make us a little hopeful and quite sure that this season the possibility of the title will not always be stagnant for Bayern Munich alone, but it is possible to change if we see and conclude from the current situation.
Basically all possibilities are still very possible because the season will still run and everything is still uncertain even though Leverkusen now looks very strong at the top of the table. Yes you are not wrong, it is true that the difference between Bayern Munich and Leverkusen is now only 2 points, although they have been at the top for several weeks but on the other hand suddenly doubts arise in me because next Leverkusen will face Dortmund, I think some people also think about this, but yes their struggle is far enough in terms of maintaining consistency at the top, and that means it is very possible for Xabi Alonso to really maximize the match against Dortmund later in order to get full points and a little further away from Bayern Munich's pursuit.