They play more less 3 finals in less than 10 days and seriously I am backing them to win the games comfortably. I see Xabi only dropping players at most in the DFP pokal final due to the team in contention.
There are 3 teams who won their league with unbeaten record; AC Milan in 1992, Ajax in 1995 and Arsenal in 2002. Arsenal went unbeaten only in the league, the other two went unbeaten in all competitions, including won Champions League trophy. Leverkusen will be on this list, if they can prevent a loss against Augsburg, and this gives more prestige in the historical sense. The last 3 games for Leverkusen are 3 finals in literal sense, because each win will be a history for the club.
After these two matches are coming which are mostly likely they can win and having their season end with three titles even few rumours are spreading around for their few top players are having huge offers which can bring good financial stability at the club, but they needed to have squad first which will make things impressive in second season as well.