Batman would probably not come from inherited wealth (he'd be more self-made) and Alfred wouldn't be a Butler. Bruce's family might be middle class,...
If things started up now, I imagine Lex would actually have powers of some sort so he could be a challenge to Supes in a fight.(probably through some...
I think that's what making future adaptions still interesting. We're getting a condensed/abridged modified version of all these storylines. New show...