The Flash Season 3 Finale: 8 Big Questions We're Asking After 'Finish Line'

During the big final showdown, Barry (pretty stupidly, actually) turns his back on Savitar, leaving himself open to attack. From out of nowhere, there's a gunshot and it is revealed that Iris has killed the villain, moments before he vanishes from existence.

This is a pretty big moment for Iris, who has never taken a life before. Not to mention the fact that it was a copy of her fiance. So will she have to deal with the after effects of this next season? It could happen, in order to flesh out Iris's character a bit more and to give Candice Patton some meat to chew on as an actor.

On the other hand, the episode frames the event in such a way as to suggest it won't be a big deal. For one, Savitar is already a dead man walking and disappears moments after Iris shoots him. Likewise, the moment is portrayed as a moment of triumph, as it sees Iris stepping up to protect Barry rather than being the damsel in distress she has been presented as for the last half-season.

I could be wrong about this, but do have a feeling this moment will be swept under the carpet going forward.