It was revealed on Instagram, Gwyneth Paltrow who play Pepper Potts will be suiting up for Avengers 4 in May. The green screen in the back will be filled with CGI.
Pepper Potts first appeared in Rescue armor in Invisible Iron Man #10 (2009) published by Marvel Comics written by Matt Fraction.
On ebay, sellers are asking for $20 to $30. Sell if you have a copy, this is going to be a minor bump and then it will fall back down in prices.