Is Pepper Potts "Iron Woman" in Avengers 4?

Actor Gwyneth Paltrow recently posted a video on her Instagram account that has since been deleted. It gave us a clue that may have revealed a major Avengers 4 plot spoiler involving her character Pepper Potts, who is married to Tony Stark (Iron Man) at this point. In the clip, she was resting on a sofa in the picture and her legs covered in mo cap-socks, which means she is likely dressed in CG-armour at some point in the actual movie. This is not the first time Potts will be covered in Iron Man-metal, though. In Iron Man 3 she saved her husband from being killed by the villain The Mandarin. And of course, the Avengers will need all the help they can possibly get as they try and defeat Thanos after he secures the infinity stones.