I understand it's a somewhat volatile topic, but aren't we still talking about the casting for the JL movie? I don't see how that's off topic.
I think a lot of the changes we see on screen as far as race go are just as much about making a modern interpretation of a very old story as it is about demographics and political correctness.
But while I like Cyborg, I still wish we could get MM as well. Obviously they'd have to downplay or remove his superman powers, but I think he's interesting enough with shape shifting and telepathy.