First time I read about that. From what I know, it supposed than John Henry Irons have inspiration on the folklore legend and their parents named him...
We have no idea. Bendis apparently said there are plans, but Bendis says a lot of thing and not every project is made. He even joked than his Legion...
Now I'm hoping for an episode where C&L decide to switch for some strategic reason - see Clark show off his reporter skills and Lois show some of her...
I bet if they ever get around to showing it, we'll see that Molly knew (or suspected) all along, and went into it with her eyes wide open for her own...
I do like the aspect of the show that parenthood is difficult for anyone - even Superman. And we'll just disagree about how "immediate" was Jordan's...