11 Ways Suicide Squad Characters Could Die
2. Katana

How She Could Die: Much like Diablo, she's likely to be the conscience of the team (as she's typically a superhero rather than villain), which combined with her origins suggests committing ritual suicide is definitely a possibility a) once the mission is over or b) if she dishonours herself during the course of the movie.
She's also said to be Rick Flag's bodyguard in the movie, which makes her a prime candidate for death from the outset.
Why She Probably Won't: She's been a member of the Justice League in the past, and it's possible (though not massively likely given the size of the group already) that they may want to save her for an introduction sometime down the line.