Securing that was thanks to the extra quota given to the Bundesliga though but anyway. No matter Terzic wins the Champions League title or not, I think his contract likely to be extended soon. Currently it is ending by next summer. If I were in Dortmund board's place I would sign him for one more year now.
Football is really full of surprises. Some time ago, I was thinking like Terzic might be under danger of getting sacked due to doing bad in the Bundesliga.
being runner up in the UCL is also a source of pride because it is not easy to advance to the final round, on the one hand, very difficult obstacles are one of the obstacles that hinder every team from continuing their performance to the top of the final round and Dortmund was able to overcome it all.
of course Terzic will be retained and maybe even for the next 2 seasons if in the coming season he can still provide good results for Dortmund.
The effort to retain Terzic is most likely due to Dortmund management's belief that Terzic can bring Dortmund one step closer to winning a prestigious title.