Paul Bettany and Elizabeth Olsen are expected to star in the series, reprising the roles they originated on the big screen.

Marvel, which likes to operate its development under a shield of secrecy, is known to be working on several series that will debut on Disney+. Other known series will focus on Loki, the god of mischief played by Tom Hiddleston, and a team-up of Falcon and Winter Soldier, the heroes played by Anthony Mackie and Sebastian Stan, respectively. Malcolm Spellman (Empire) has been hired to write the latter effort.

Vision and Scarlet Witch are some of Marvel Comics’ most enduring characters, with a (sometime) tender love story binding the two through many decades. Vision is a synthezoid who was created by Ulton, one of the Avengers’ greatest enemies, and is a being who longs for human understanding. Scarlet Witch, whose alter ego is Wanda Maximoff, has various sorcery abilities. The pair have headlined several comics miniseries with their relationship featuring several twisty turns: The two were married and had two kids, which in a later storyline were later revealed to be figments of her imagination. Vision also later created his own android family.

For Schaeffer, the deal to run Vision and Scarlet Witch strengthens her ties to Marvel. In addition to working on Captain Marvel, she also penned the screenplay for Black Widow, Marvel’s movie project centering on the Avengers character played by Scarlett Johansson, which is due to shoot later this year. She also co-wrote the Disney short Olaf’s Frozen Adventure.

Schaeffer is repped by Verve.