Maybe it's time for me to give my own choice - I think that the "ten years on" with the same actors would be the most interesting, followed by a "next gen", maybe set today and telescoping the intervening years a little - the children of Lois and Clark are just getting started as superheroes (or not if they don't feel up to the job), L&C are still around but mostly in the background - maybe appearing for a few minutes occasionally - but the main focus of the story is the children.
