The series will serve as a link to Doctor Strange in the Multiverse of Madness (2021).

Elizabeth Olsen has stated that this series will feature a 50s aesthetic. The Super Bowl ad showcasing the upcoming Marvel Studios' Disney+ shows also hinted at 60s, 70s, 80s, 90s, and modern looks as well.

This is director Matt Shakman's second comic-book feature, after The Boys: Cherry (2019).

Aaron Taylor-Johnson is in talks to reprise his role as Pietro Maximoff for flashbacks.

The series is based on the comics "The Vision and the Scarlet Witch" (the two heroes have adventures together) and "Visions" (the Vision tried to live a normal life with his family).

Kathryn Hahn's role in WandaVision is a "nosy neighbor", possibly a woman named Agnes. This name may be a nod to the comic book character Agatha Harkness, a woman who helped Scarlet Witch hone her reality-warping power.