I don’t think Bayer Leverkusen will have chance to repeat such victories they had last season because Bayern Munich is now ready as they have signed new coach and some good players as well to help the team. Moreover, I can see that Leverkusen didn’t make some changes in their squad and their pattern of play has already been noticed by almost all the teams in the league which will make it difficult for them to win the League unbeaten or even win the League because they have several competitions including Champions league which is very tough and for Alonso to be their for the first time, it will be a bit hard for him because he will be facing big teams in the tournament.
Obviously repeating the kind of success they recorded last season isn't going to be one Leverkusen may be able to maintain again into this season, it doesn't mean there's an underestimation on their abilities and performance but other bundesliga teams are getting ready and are already in their best shape making sure they aren't loosing out in anything just to make sure they are going to have a good season ahead so if Leverkusen is expecting it easy or to be exactly like last season, then that may turn out erroneous. Mostly in the champion's league the chances are low than it is with the bundesliga.