Let's see how the game goes, because I feel that both teams are equal to the other and any mistake from any of them will be advantage for the other club to win the match. However, with the current form of Leverkusen, they might be able to snatch all three points in this match, but I don't think that Dortmund will be sleeping and allow them walk away with all three points. The match might end in a draw.
There is a possibility that the match will end in a draw because both of them might be in a good situation. But I think Leverkusen might be a little bit superior. Leverkusen has drawn too many matches this season, of course, that makes a few points difference with Munich. They will maximize everything to get 3 points. Dortmund is not weak, but I don't think they are really above Leverkusen with the current situation. There might only be a few goals in this match, Leverkusen might lead.
It looks like Dortmund will have a better chance of winning because after all, in the previous season when Bayer Leverkusen was in a trend without defeat throughout the season in the Bundesliga, but in fact last season Dortmund also managed not to lose against Bayer Leverkusen with a draw. Thus, because later Dortmund will play at home, it looks like Dortmund has a chance not to lose, a win for Dortmund or maybe also end with a draw is still very likely to happen. Although indeed, I also feel that Bayer Leverkusen is still a better team at this moment compared to Dortmund but yes, because there is a record of their head to head, it does not seem easy for Bayer Leverkusen to beat Dortmund at Signal Iduna Park.