This is also the most decisive step for Xabi ALonso to show that he is worthy of managing the team. His decision to stay was also part of Xabi Alonso goal to bring Leverkusen back to experiencing the UCL competition with different strengths. The UCL clubs are certainly looking forward to the match against Leverkusen, because they have an unbeaten record of more than 40 matches. Certainly an attraction in itself, Xabi Alonso really wants to rise to a higher level next season. We can't predict much but Levekusen confidence in the Bundesliga clearly gives a positive aura for prestige in the Champions League.
Xavi Alonso made a good decision to stay in the team to make himself and the team worthy of the Champions League they qualified to play next season.
In the other hand, his decision to stay will make Bayern to be make a good decision on signing new manager because they were hoping to sign Alonso after this season. They need to sign new manger so that they can challenge Bayer Leverkusen next season and Dortmund and other teams.
If Alonso did well in the Champions League next season, he will have more offers from various teams including Real Madrid and Barcelona.