While the Warrior Nun movie would really benefit from trying to replicate much of what the Warrior Nun television series did, there is one idea from the show's unmade season 3 that the movie should definitely not use. Warrior Nun is a TV series made by Netflix and based on the comic book character Warrior Nun Areala, written by Ben Dunn. The series follows 19-year-old Ava Silva who wakes up in a morgue and discovers that, not only does she have a second chance at life, but she also is part of an ancient group that protects Earth from demons. The series ran for two seasons before being canceled.

https://screenrant.com/warrior-nun-movies-ignore-season-3-villain-plan-ava/