Yog, I do feel that DC is trying to be different in that manner. Because yeah Marvel's heroes are pretty monochromatic in the MCU but if all the casting rumors are true DC is going the exact opposite direction which I applaud really. 

They confirmed Cyborg to be in and having Steel or Black Lightning show up eventually would be a treat. I wouldn't be surprised if they got John Stewart or Simon Baz to be the movie Lantern and had Ryan Choi or Rhonda Pineda to be the Atom (minus the whole traitor thing with Rhonda). I wouldn't even be surprised if they changed the appearance of other characters like Hawkman and Hawkgirl despite their traditional portrayals. J'onn is commonly portrayed as a black man in human form too. 

Krein, Which is interesting considering Marvel is generally considered the more "grounded" of the two in the comics.