Originally Posted by JB-the-Hunter
From Toby Jones regarding Arnim Zola
And from Hayley regarding Peggy
I'd say that could definitely have something to do with infinity formula, and furthermore part of BlackWidow being explored. Some big things we don't know about that went on between WWII and Avengers.
I've hinted at him trying to invent the infinity formula before in my posts but It'll be hard to find.
I was talking about how Zola might need his robot body to survive all this time and was one of the people unfreezing Winter Soldier and activating him again. He needed to stay unfrozen so that he could give orders to others. But if he had continued to age, he might end up dying.
The actors who play them would age over time. So because Zola may most definitely be back in action and not just flashbacks, he needs either the robot body or some way to stay in action (possibly a combination of both and maybe even freezing and waking more frequently than Winter Soldier).