Michael Rosenbaum is still sitting on his plan to revive Smallville as an animated series
The idea is apparently really good, but Rosenbaum won't take it to Warner Bros. until the timing is perfect

Smallville premiered on what used to be called The WB more than 20 years ago, and though it had a solid 10-season run (more than 200 episodes!), it can still be easily argued that the show was way ahead of its time. Not only did it predate the superhero boom in general pop culture, but it predated the superhero boom on The CW (which its network transformed into halfway through its run). One could even make the case that a big reason the Arrowverse was so successful was because its creators had learned important lessons from Smallville about what does and doesn’t work on a CW budget. It would be interesting to see what the show would be like today… which is possibly one of the reasons why stars Tom Welling and Michael Rosenbaum have continued to carry a torch for their old superhero prequel series.
Rosenbaum has actually been sitting on a pitch for a Smallville revival for years, but with a twist: He wants it to be animated. Screen Rant recently caught up with Rosenbaum—who played young Lex Luthor on the series—and asked him about this idea for a Smallville revival, but it sounds like the world isn’t ready for it yet.