Florian Wirtz seems like secured for Leverkusen for at least next season. Normally it wouldn't be much possible but Xabi Alonso effect changed everything for Leverkusen. They started to believe in themselves to achieve any title available. 
Therefore I also think Wirtz doesn't need to leave already now. He is only 21 years old as well so there is no need to rush while doing wonders with his team.
Therefore I also think Wirtz doesn't need to leave already now. He is only 21 years old as well so there is no need to rush while doing wonders with his team.Florian Wirtz has had a wonderful performance for Leverkusen this season, after Boniface, he was the club's highest scorer. Wirtz is still a young player who has much to achieve in the future, I believe that he will spend next season with the club, and despite that many top clubs have monitored him this season due to the good performance he had at Leverkusen the decision will not change. Bayer Leverkusen has signed a new defender to strengthen their squad for next season, I think that is a good sign that we should expect more trophies from them next season, they will play in the next Champions League, so getting more players to their squad will help them win a lot of their games or even continue with their unbeaten record.
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But in the summer of 2025, it seems like it will be very difficult to keep him. Real Madrid and Barcelona are already monitoring him according to rumours. As long as Leverkusen doesn't win the Champions League title I don't think he would stay.
I agree with you if Leverkusen did not win the Champions League next season, Florian Wirtz might leave the club at the end of the season because he is still at the age of 21, and he has a chance to win more trophies in his career. Wirtz has already won the Bundesliga title in his career, so if Leverkusen fails to win the Champions League next season, he may join another top club that is interesting to him and win the Champions League. But I don't think Real Madrid will go for him after next season because they already have the players they need to win games.