yes you are right leverkusen is still a candidate club for the title and so far they are still consistent in their game, the players are still the same as before as well as the coach, there is no pattern of play that has been changed by xabi alonso. leipzig can be counted on in this game but if the opponent is leverkusen the chance to win is slim, most likely leipzig is targeting one pawn even though it will be difficult because leverkusen will not want to share points other things leverkusen's brilliance last season I doubt they can repeat it there is no guarantee for that especially some bundesliga clubs are also getting stronger so there must be a club that surprises and beats leverkusen this season.
It is indeed difficult for Leverkusen to be able to repeat the same success as last season, which is unbeaten in all Bundesliga matches.
Leverkusen this season is still as strong as last season, but several other Bundesliga teams have also increased their quality so that it will be difficult for Leverkusen.
However, for the match against Leipzig this week, it will not be easy for both of them, but I think Leverkusen is still the favorite because they will play at home and also at the beginning of the season like this, we still find it difficult to measure the real strength of the team, so for Leipzig it is still unclear whether they can be better than last season or not, so for me I think holding Leverkusen is still quite feasible.