User blog comment:LoveWaffle/First details about the MCU's Ultron emerge!/@comment-8284722-20140718030629

Given that you updated with "the twins", I thought I'd go ahead and give my thoughts on what their role is. Okay, first things first: THEY ARE MUTANTS. However, Marvel can't use the term "mutant" thanks to Fox, but they are allowed to say "miracle". And as Von Strucker said: "Nothing is more horrifying than a miracle". Sound familiar? Well, if you're a mutant, those words are ice. Anyway, like mutant powers, their powers only manifest at some random stressful moment, which I think will be the excessive torture from Loki's Scepter under Hydra. They are also brainwashed akin to the Winter Soldier, causing them to forget their names (so yeah, we probably won't hear "Maximoff" this time around), their parentage (obvious reasons), etc. Later on, Ultron learns of them and decides to exploit them. Destroying all remnants of Hydra, he tells the twins to his cause, and not knowing better, they accept. Later on, Cap meets up with them and is given a harrowing reminder of Bucky's similar phase (The Winter Soldier is said to have laid the ground for Age of Ultron). Vowing to cure them like he failed with Bucky, he eventually succeeds, and the twins join the Avengers. If you don't think they'll join, why are they fighting WITH Hawkeye in some of the set photos?