Those who are familiar with comics probably know that at one point Pepper gets turned into cyborg superheroine Rescue. That happens because she's seriously injured during explosion so Tony must put magnet into her chest. She also gets her own suit that she uses to escape from Stark Industries when under attack.
Seeing the explosion in IM3 trailer got me thinking. Wouldn't it be cool to have Pepper turn into Rescue? And then have her own spin-off movie?
I know it's unlikely because studios are deathly afraid of female superhero leads. But one can hope, right?