I wish WB would realize DC has more ip outside of Batman.
Though there are other DC characters being worked on, as @TachyonTele@lemm.ee mentioned, the number of poorly received Batman-adjacent projects in past 5 years is astounding:
- Suicide Squad: Kill the Justice League video game
- Gotham Knights video game
- Gotham Knights series
- Titans series (the first two seasons were heavily marketed as being Batman-adjacent. I stopped watching after the second season, so I am not sure about the rest.)
- Joker: Folie à Deux movie
- The Flash movie (same as Titans, marketed heavily as being Batman-adjacent)
- A couple of forgettable animation movies like the super-pets one.
The only good Batman-adjacent project in recent times which I can recall is The Penguin.
Superman, Supergirl, Green Lanterns, Authority, Swamp Thing, Booster Gold, and some other stuff is all being worked on.
Is this an Elseworld movie?
If so, I would not be interested in it since I found the last two Elseworld movies about a Batman villain to be terrible.
Joker and it’s sequel were not made under James Gunns tenure. Superman will be the first Gunn DC movie. (Other than Suicide Squad. But idk if thats going to count.)
Gunn has said multiple times he likes DC because you can do almost anything with the characters. He wants to build a shared universe, and do elseworld stories.