The 100 Prequel Spin-Off: Spoilers, Title, Release Date, Trailer, Casting, and More

tvguide.com:

 The 100. Though a backdoor pilot, which aired in The 100's seventh and final season, gave us some insight into what his new series could look like, there are still a lot of questions left to answer.The CW first announced its plans to start developing a spin-off of The 100 in October of 2019, and TV Guide has been eagerly compiling any and all scraps of information about this potential new series since then.

From backdoor pilot spoilers to casting to pickup news, here's everything we know about this possible series.It will be set in the past. This potential spin-off would be set 97 years before the events of The 100 pilot, occurring during the time period when a nuclear apocalypse wiped out almost all of the planet's population.