I've separated the movies from the TV and Online series. This should make it much easier to search for a specific movie that's under development.
My distinction between "Under Development" and the year by year pages (which I had previously labeled "Upcoming") is whether a release date has been assigned. When I first hear about a project (maybe when a work has been optioned) I'll log it here, along with any names associated with the project and maybe a reference to the original material. Once the project has been developed to a point where a release date has been assigned, I'll move it to the appropriate Movie [Year] page.
Although they may be ephemeral, the idea that these movies may happen is pretty exciting, and I'm happy to follow along as the ideas either evaporate or congeal.
Avatar 3
Under development by 20th Century Fox (2023?)
Avatar 4
Under development by 20th Century Fox (2025?)
Avatar 5
Under development by 20th Century Fox (2027?)
Black Cat
Under development by Sony
Black Panther 2
Under development by Marvel
Director: Ryan Coogler
The Bride of Frankenstein
Under development by Universal as part of their Shared Monster Universe
Descender
Under development by Sony
Based on an Image series by Jeff Lemire and Dustin Nguyen
The Flash
Directors: John Francis Daley, Jonathan Goldstein
Starring: Ezra Miller, Kiersey Clemons, Billy Crudup
Under development by Warner Brothers and DC Entertainment
Flash Gordon
Director: Taika Waititi
Developed as an animation movie for Disney
GAMBIT
Starring: Channing Tatum
This movie was originally scheduled for an October 6, 2016 release, but was delayed indefinitely
Under development for Fox
Gotham City Sirens
Director: David Ayer
Starring: Margot Robbie
Under development
Based on the comic series by DC Comics
Green Hornet
Director: Gavin O'Connor
Under development by Paramount Pictures
A re-imagining of the character as a gritty, updated version
HARBINGER
Movie under development by Sony
Based on the Valiant series
HARBINGER 2
Movie under development by Sony
Sony announced two movies based on the Valiant series
HARBINGER WARS
Movie under development by Sony
Irredeemable
Movie under development by Fox
Based on the comic by Mark Waid
The Little Mermaid
Live action adaptation
Under development by Disney
Knight Rider (Reboot)
Under development for the Machinima digital network
Lobo
Under development by Warner Brothers
Lumberjanes
Director: Emily Carmichael
Under development by 20th Century Fox
From the comic book
The Lunch Witch
Director: Clay Kaytis
Starring: Kate McKinnon
Under development by Amblin Partners
Based on the graphic novel by Deb Lucke
Myst
Under development by Village Roadshow Entertainment Group
Also as a TV shoe
Red Sonja
Under development by Millennium Films
SCOTT MCCLOUD'S THE SCULPTOR
Under development by Sony
Spawn
Director: Todd McFarlane
Starring: Jeremy Renner, Jamie Foxx
Under development by Todd McFarlane
Spider-Man: Into the Spider-Verse 2
Director: Joaquim Dos Santos
Under development for Marvel
Thor 4
Director: Taika Waititi
Under development by Marvel
The Trench
Spinoff from Aquaman
Van Helsing
Under development by Universal as part of their Shared Monster Universe
The Wolf Man
Under development by Universal as part of their Shared Monster Universe