The Return Of The Joker
The Return of the Joker is on this list for one reason: it’s an opportunity for DC to retcon Jared Leto’s Joker. By introducing the concept that the current Joker is an imposter, the real Clown Prince of Crime could come out of the woodworks to beat the bejesus out of the tattooed Juggalo posing as him.
If the writers really want to get even more creative, why not introduce the second Joker as Clayface in disguise? Can you imagine how Harley would react? We might be deviating quite a bit from the source material here, but remember, storylines serve as basic guidelines and don’t need to be adapted panel for panel.
Everyone knows that the DCEU’s Joker was a dud and deserved a lot better for someone of Leto’s caliber. That said, the comic book world is a wild and wacky place, and there’s always a second chance to get it right.