Assisted Career Suicide.
There are other factors...
Diana recieves the same revelation about humanity as Erik in Erik the Viking, but still feels the need to kill Ares. Does she do it because she doesn’t believe him or because it’s what she was born to do... or was told that’s what she was born to do. Maybe she did it because Ares killed her dad (Zeus).
Maybe they can make him the son of the real Mandarin, to tie him into the existing MCU backstory.
Aww... I was hoping he was going to reveal that The Purge movies are actually an alternate MCU timeline and the new founding fathers are HYDRA.
Damon delivers a much more conflicted and chilling performance as Edward Wilson in The Good Shepard. Maybe not outright villainous, but morally questionable no matter his justifications.
Who the heck is Danny Goober? Is this some oblique reference to those episodes where The Partridge Family appeared on Goober and the Ghost Chasers?
And yet we send them off to war. The Slayer is at war with the forces of darkness, so the age seems appropriate.
Since you brought up gender, I’ll counter with a suggestion I made on a similar thread over at io9... Why not have the new slayer be a transgender teen...
qui tacet consentire videtur... silence means (implies) consent.