7. Wonder Woman's Mythology Will Be Totally Established
Warner Bros. are smartly giving audiences plenty of time to get to know Gal Gadot's Wonder Woman ahead of her appearance in Justice League. She will appear in Batman v Superman and it's already been confirmed that her origin story will be nodded to, that she's a demi-God and the daughter of Zeus (rather than the prior persistent rumour that she's a Kryptonian descendant). Then there's the fact that the standalone Wonder Woman movie has just begun shooting for release just five months before Justice League Part One, which will presumably delve deep into the character's origins and be able to flesh her out fully ahead of her arrival in "the big one". If DC pull off the Wonder Woman character, and specifically a successful solo movie, they'll have done the one thing that Marvel is still struggling with (their own Captain Marvel movie isn't due until 2019).