See-Threepio will have a new red arm in Star Wars: The Force Awakens. Marvel will tell the story regarding how Threepio got his red arm. StarWars.com:
Today, Marvel announced Star Wars Special: C-3P0 #1, a new story from the Journey to Star Wars: The Force Awakens publishing program coming in December.
Remember when Star Wars: Revenge of the Sith was about to come out and we saw Anakin with the scar on his face? I always loved when Clone Wars explained that onscreen. This is a pretty good medium to explain how Threepio gets this red arm. I’m excited for it.
Head over to StarWars.com for all the details.