Titans: Casting The Trinity & Bat-Family
3. Wonder Woman - Bridget Regan
As her appearances in things like Agent Carter and The Last Ship have proved, Regan is a pretty great actress, and, as such, is more than able to sell the idea that she is an absolute badass, something which is the basis for any great Wonder Woman portrayal.
And while Gal Gadot's depiction of the character has been (excuse the pun) wonderful, Regan clearly has more experience in terms of performances, not to mention being the spitting image of how the heroine is drawn in the comics, just look at the image above for comparison, it's uncanny.
Anyhow, it's not like Regan would be, in any way, replacing Gadot, but rather just playing a different version of the character, much like how there are (or should I say were, with Cavill's apparent departure) two different versions of on-screen incarnations of Superman concurrently.