Gwyneth Paltrow, who plays Virginia "Pepper" Potts, may have accidentally revealed that she's donning an Iron Man suit in Avengers 4. Paltrow shared two photos, which have since been removed or made private, on her Instagram account. The images show her wearing a checkered motion-capture suit, which may indicate she will have a suit of armor added in post-production.
Since Invincible Iron Man's "World's Most Wanted" storyline, Pepper has used the Rescue armor to become a hero in her own right. However, it's not clear at this time if she will become Rescue in the film.
Paltrow was absent from several high-profile Marvel films following Iron Man 3, with Stark remarking in Captain America: Civil War that the two were "taking a break." However, she did briefly re-appear in 2017's Spider-Man: Homecoming, where Stark proposed to her, and set photos in August confirmed her return for Avengers 4. Following the release of the trailer, a theory that Pepper will die in Infinity War has gained traction.
The untitled sequel to Avengers: Infinity War will release on May 3, 2019. Directed by Joe and Anthony Russo, Marvel's Avengers: Infinity War stars Robert Downey Jr., Josh Brolin, Mark Ruffalo, Tom Hiddleston, Chris Evans, Chris Hemsworth, Jeremy Renner, Chris Pratt, Elizabeth Olsen, Sebastian Stan, Benedict Cumberbatch, Paul Bettany, Samuel L. Jackson, Cobie Smulders, Benedict Wong, Zoe Saldana, Karen Gillan, Vin Diesel, Dave Bautista, Pom Klementieff, Scarlett Johansson, Tom Holland and Anthony Mackie. The film opens May 4, 2018.