I've separated the TV and Online series from the movie section. This should make it much easier to search for a specific show.
Rumors abound regarding series that are "under development". And there are a lot of hurdles a project must clear before it actually becomes a released series. On this page, I'll keep track of the genre related rumors and developments until a project is actually given a release date. At that point, I'll move it to one of the "Upcoming" pages based on the expected year of initial release, even if the release date is a general timeline.
Although they may be ephemeral, the idea that these TV shows may happen is pretty exciting, and I'm happy to follow along as the ideas either evaporate or congeal.
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Another Life Season 2
Starring: Katee Sackhoff, Samuel Anderson, Blu Hunt
Developed for Netflix
Aquaman: King of Atlantis
Under development by HBO Max
Animated series
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Avatar: The Last Airbender
Under development by Netflix
This is a live-action series adaptation
Battlestar Galatica New Series
Under development by NBC Universal for Peacock
Reportedly an alternate story set in the Ronald Moore universe
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Bone
Animated series under development for Netflix
CARNIVAL ROW Season 2
Starring: Orlando Bloom, Cara Delevingne, Waj A
Produced for Amazon Streaming
The Chronicles of Narnia
Under development for Netflix
Cassian Andor Series
Series developed for Disney+
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DMZ
Under development or HBO Max
Doc Savage
Under development by Sony
Dune: The Sisterhood
Under development by WarnerMedia
Earth to Ned
Under development for Disney+ by Jim Henson Company
Earthsea
Under development for TV by A24
The Emperor’s Blades
Under development by Legion M
From the book series The Chronicles of the Unhewn Throne by Brian Staveley
Essex County
Under development for CBC
From the Top Shelf Comic by Jeff Lemire
Event Horizon
Series under development by Amazon and Paramount Television
The Expanse Season 5
Starring: Steven Strait, Cas Anvar, Dominique Tipper
On Amazon
Farmhand
Under development by AMC
From the Comic Series
Fast Color
Developed for Amazon
From the movie
Final Fantasy
Developed by Sony Pictures Television and Square Enix
THE FOREVER WAR
Series under development at Warner Bros.
Starring: Channing Tatum
From the book The Forever War by Joe Haldeman
Game of Thrones Prequel
HBO HAS REPORTEDLY PASSED ON THIS SERIES!
This prequel takes place thousands of years before the original Game of Thrones story line
GATEWAY
Series under development by SyFy
Based on the 1977 Frederik Pohl novel Gateway
Green Lantern
Under development for HBO Max by Greg Berlanti
Hitchhiker’s guide to the Galaxy
Series under development for Hulu
House of the Dragon
Series under development by HBO
This prequel will focus on the early days of House Targaryen
Hungry Ghosts
Optioned by Sony Pictures Animation for an animated series
From a comic by Anthony Bourdain
Invincible
Starring: Steven Yeun, J.K. Simmons, Sandra Oh
Under development by Seth Rogen and Evan Goldberg for Amazon
JIM STARLIN'S DREADSTAR
Under development as a weekly TV series by Universal Cable Productions and Benderspink
Jim Starlin is penning the initial script
Knights of the Old Republic
Series developed for Disney+
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Kung Fu Reboot
Series under development for CW
Lord of the Rings
Series under development for Amazon
The Lost Boys
Under development by The CW
Magic: The Gathering
Joe Russo and Anthony Russo
Under development for Netflix
The Man Who Fell To Earth
Under development for CBS All Access
Myst
Under development by Village Roadshow Entertainment Group
Also as a movie
Obi-Wan Kenobi
Under development for Disney+
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The 100 Prequel
Under development for CW
Paper Girls
Under development for Amazon Studios
Based on the comic by Brian K. Vaughan, Cliff Chiang, and Matt Wilson
Pennyworth Season 2
Starring: Jack Bannon, Ben Aldridge, Hainsley Lloyd Bennett
Under development for Epix
Raised by Wolves
Starring: Winta McGrath, Loulou Taylor, Jenna Upton
Developed by Ridley Scott for HBO Max
Red Mars
Creator: J. Michael Straczynski
Under development by Spike TV
Based on Kim Stanley Robinson's Mars trilogy
The Rocketeer
Under development for Disney+
Rules of Magic
Developed for HBO Max
Prequel to the movie Practical Magic
Sandman
Series under development by Warner Brothers for Netflix
From the comic series by Neil Gaiman
Shadow and Bone
Series under development for Netflix
From the book series
She Could Fly
Under development for AMC
From the comic by Christopher Cantwell and Martin Morazzo
Sin City
Series developed by Legendary Studios
From the comic by Frank Miller
Sinatoro
Series under development at Universal Studios
From a comic by Grant Morrison
Star Trek: Discovery Season 4
Under development for CBS All Access
Star Trek: Lower Decks
Animated series under development for CBS All Access
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Strange Adventures
Under development for HBO Max by Greg Berlanti
Anthology series featuring Adam Strange
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Tortall Universe
Under development as a series for Lions Gate
From the book series by Tamora Pierce
Umbrella Academy Season 2
Starring: Aidan Gallagher, Ellen Page, Tom Hopper
Under development for Netflix
Undone
Starring: Rosa Salazar, Angelique Cabral, Constance Marie
Under development by Amazon Video as an animated series
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The Unsound
Director: David F. Sandberg
Under development for Netflix
From the comic of the same name
The Wheel of Time
Starring: Hammed Animashaun, Barney Harris, Daniel Henney
Developed for Amazon from the books by Robert Jordan
Wild Cards
Under development by NBC Universal
From the series edited by George R. R. Martin
Willow Sequel
Sequel series under development for Disney+
THE WITCHER Season 2
Starring: Henry Cavill, Freya Allan, Joey Batey
Developed for Netlix
The Witcher: Nightmare of the Wolf
Anime developed for Netflix
Xena Reboot
Underdevelopment by NBC
Y: THE LAST MAN
Series under development by FX
Based on the Image Comics series
Young Avengers/Champions
Under development by Disney+