User blog comment:Sindbad DKDK/Possibilities for High School DxD season 5/@comment-2208155-20191118140908

There are chances according one interview(they are still interested in the serie) but no date.

https://www.monstersandcritics.com/anime/highschool-dxd-season-5-high-school-dxd-movie-fan-service-interview-kadokawa-hero-producer-satoshi-motonaga-anime-expo-2019/