Point is that Leverkusen was on a different level. I have no idea whether they will be able to repeat that, but fact is that this performance was so out of this world that I can't think of a situation where they will repeat it. If it is the case, I am the first person to salut!
No other team has been able to surpass Leverkusen level this season, they have managed to lock in the Bundesliga title with an undefeated record, now Xabi plans to close the season as a team that has never been defeated. I think it's difficult, the team's performance is always different every season, there will always be unexpected events that make the team perform less than optimally.
An unbeaten record in one season is very difficult to achieve because not all teams can do it, maintaining this record is more difficult than achieving it. Xabi stay as coach is certainly good news for Leverkusen and bad news for Bayern Munich, next season there will be even more competitive competition after Bayern Munich realizes that there is already a team competing with it in the race for the title.
Bayer Leverkusen has shown a very different performance this season so that other clubs have not been able to surpass it, even Bayern Munich has not been able to surpass Bayer's good performance so far this season. Alonso has really been the best coach for Bayer Leverkusen since last season and has immediately had a really positive impact. Alonso's news to stay at Bayer would be very good news because he would again provide competitive competition in the Bundesliga.
If there are striking changes to Bayern next season then they can return to being a top club but if Alonso continues to give the same performance as this season then it will be very difficult for Bayern to beat Bayer, this season's competition is very interesting to watch because there are already other clubs who provide equal resistance with Bayern Munich so for the next season Bayern will be a little under pressure in the Bundesliga unlike previous seasons.