With the release of trailers come theories. They go from Cap dying to Vision's soul gem to Spider-man cameos. When the 2nd TV spot came out, it was revealed that the twins Wanda and Pietro are Ukrainian.
Now, keep in mind that these are two, well-established superheroes in the Marvel Universe as X-Men and Avengers, but also the children of the villian Magneto. Due to 20th Century Fox owning the rights to all X-Men characters, their origin has to be changed from the canon. So, how do the 20-something year-old Maximoff's get their power?
On April 26, 1986, the Chernobyl Nuclear Power Plant Had a massive leak caused by a fire that took 50,000 workers to contain. 31 people died do to the explosion or direct exposure to the radiation. The number of victims over time is still unknown. There are many conspiracy theories about foul play, i.e.
- The entire thing was done as a test and the results would determine if Russia could survive a nuclear war.
- America/England Sabotaged reactor to stop Russia from advancing in the nuclear field.
7 Russian scientists escaped to a Greek island and now run a Tomorrowland as immortals.
Bridging the Gap
What if, with the inability to have Magneto in the film, Marvel decided to make Scarlet Witch and Quicksilver the only successful test subjects from Chernobyl? Their age chronilogically lines up with the disaster, making them 28-29 years old. Being Ukrainian, it would have been a hard event to avoid. Speaking of test subjects, we already know Hydra has worked within Russia as well as the Nazis.
Dr. Arnim Zola was Hydra's top scientist who was captured by Captain America on a train moments after Bucky's "death". The Swiss Scientist was then seen in Captain America 2 as a computer (The Bio-Fanatic) and in Flashbacks as the creator of the Winter Soldier. These events are currently being bridged on Agent Carter, Where, in the final scene of the first season, Zola was seen as Doctor Faustus's (Johann Fennhoff) new cellmate. The scene foreshadows their escape and the rebirth of Hydra.
So, you have a hydra scientist with first hand experience researching an infinity stone working for Russia after the Winter Soldier program was already years in effect working on Chernobyl to try to re-create the effects of the Super-Soldier serum which results in a pair of Ukrainian Twin's DNA has been mutated* giving them Superpowers. Given the direction Marvel seems to be going with, I would say this is a very plausible solution to the recreated origin of Scarlet Witch and her brother, Quicksilver.
* I couldn't resist.