[quote=MrDidact]
If we ever have our own Superboy-Prime he definitely wouldn't be coming in this early. Also who is Scoot McNairy playing in B v S? Some say Flash, some say Metallo. I am curious.
[/quote]

of course he wouldn't show up any time soon, we would need aliens to be introduced long before that happens, and we would possibly need inter dimensional things to happen first as well.

nobody knows who Scoot McNairy is yet, it's just rumors.