According to a report from Deadline, Alexander is set to reprise her role as the Asgardian warrior, Lady Sif. Lady Sif is one of Thor’s oldest friends and a close companion of the Warriors Three.
She featured in the first two Thor movies but was absent for the third movie Ragnarok. Fans speculated on the absence of her character and have since wondered if we would see her in the MCU again. The reason was a simple one and despite being asked to return for Thor: Ragnarok, filming conflicts with NBC’s “Blindspot” meant Alexander simply didn’t have the time. This may have been a blessing in disguise as the Warriors Three never made it out of the film alive.
The report also states that Lady Sif may make an appearance in the upcoming Disney+ show, Loki. After the recent trailer drop, there is no sign of Lady Sif in the show but I guess we will have to wait and see.
Thor: Love and Thunder is currently in pre-production and set to start filming in the new year. It is scheduled for release on May 6th 2022 and will see Chris Hemsworth and Natalie Portman return alongside Christian Bale who is playing the villain of the movie Gorr the God Butcher.