Unlike the Flash and Supergirl, this version of Superman is one that has already been a superhero for nearly 20 years. Thus, it would be realistic to assume that he has become familiarized with most of his established supporting cast by now. And only one of Clark and Lois's sons is based off of comic book canon. Plus, doesn't make sense on why Lana Lana would even be needed for this show when there are several female characters in Superman and Lois's gallery that could have filled that spot. John Diggle hasn't been confirmed either for this show.