I didn't know where to post this but after a few ideas, I think it might work best here.
I have had this idea swirling around in my head for the last week (spent a week in the hospital).
I was thinking about superhero movie fatigue as some people put it, some people say it's a real thing, and others would say it purely comes down to the quality of the film. I tend to think the latter.
Anyway, so it got me thinking... say there is superhero movie fatigue of some sort and perhaps the genre needs a film or series that does something different and it got me thinking of The Sopranos.
What if they made a 2 season tv show or a film that took inspiration from The Sopranos and made it about Lex.
Get away from the action and explosions (to a degree) and make a real character study on Lex and his life as one of the biggest bad guys there is, but rather than going into the standard bad guy stuff, they can show us the other side of what being Lex is like. He would still be evil but we see more as to why and what makes him tick, and the daily in-betweens of being a supervillain.
If you wanted to add Superman in there in some form I would only show Lois and Clark as journalists trying to get information on Lex. They would be the "detectives" on the show that we see occasionally trying to trace his footsteps and hold him accountable for certain crimes that have been committed but we would be made to root for Lex rather than Lois and Clark, the viewer should find them annoying and getting in the way of our main characters goals.
There could be moments when Lex is looking at everything he has done and is planning on doing and is about to pack it all in because he is tired and now just wants a safe life but because of something Lois and Clark do it undoes all of that and it pushes Lex back into the dark side.