I am not very optimistic about that point especially that many Bayer Leverkusen players are looked for by many teams and Xabi Alonso himself. Additionally, Ten Hag has his way of players selections and might change drastically the technics and the way of the gameplay for the team.
I should wait for some games in the beginning of the season to get a clearer idea, until then I hope Bayer Leverkusen will stay in the top spots. I am waiting to see Borussia Dortmund competing Bayern Munich for the title next season.