There are a lot of hard-to-ignore signs that Quicksilver could make his return in WandaVision, though it's possible he won't be played by Aaron Taylor-Johnson (find more about that by clicking here).
The actor made only a single appearance in the Marvel Cinematic Universe after being killed by the villainous Ultron in 2015's Avengers: Age of Ultron. There's definitely more story to be told there, and the nature of the Scarlet Witch's powers means he could somehow be resurrected.
During a recent interview with Entertainment Tonight, WandaVision showrunner Jac Schaeffer was asked about the possibility of Taylor-Johnson returning as Pietro.
"It's so hard to answer these questions," she replied. "They're very good questions. But again, it's about Wanda's internal life and what her experience is and what her feelings are. That's what we're going to explore."
So, that's about as vague an answer as you can get, but Schaeffer did elaborate on the mention of Quicksilver in episode three. "So, my approach with Wanda was to look at the entirety of the woman, right? All of herself and all of her experiences and all of her trauma, and losing Pietro is a big part of that and having been a twin is a big part of that," she explains.
"As far as the placement of it, that was a lot of the work in the writers' room, was when do we have these moments? When do we reveal things? When do we delve into authenticity? Because the sitcom stuff, there's the patina of the happy, false environment and the happy, false self a little bit, so it made sense to me in that moment for her to have some emotional honesty."
Quicksilver's MCU return would be welcomed by fans, and if there's anyone who can convince Taylor-Johnson to reprise the role, it's Marvel Studios President Kevin Feige. We'll see!
Click on the "Next" button below to see 10 MCU
characters who were killed off way too soon!
10. Alexander Pierce
Revealed as the true leader of HYDRA in the present day, Alexander Pierce managed to infiltrate the U.S. Government, the World Security Council, and S.H.I.E.L.D.
Shot and killed by Nick Fury at the end of Captain America: The Winter Soldier, the villain's story ended far too soon, as did HYDRA's. Having him escape or continuing to pull the organization's strings from inside prison would have been a nice way to continue this subplot in the MCU.
Robert Redford, who has now retired from acting, made a surprise return in Avengers: Endgame which was welcomed, but that was when the heroes travelled back to 2012.
We can't help but wish Marvel Studios had given more thought to the future before killing Pierce.
9. Ulysses Klaue
Introduced in Avengers: Age of Ultron as a way of teasing the existence of Wakanda before Black Panther was released in 2018, Ulysses Klaue proved to be an entertaining antagonist in that film.
It was in T'Challa's first solo outing that he first got to take center stage, however, but his partnership with Erik Killmonger was cut short when the villain betrayed him.
This may have served as a surprise twist, but what a waste of Andy Serkis!
Had Marvel Studios been a little more patient, Klaue could have become Klaw and become a formidable new foe for Black Panther in the MCU. Instead, we're not sure what the point of including him was beyond paying off his cameo in Avengers: Age of Ultron.
8. Skurge
Played by the talented Karl Urban, Skurge proved himself so much more than just Hela's heavy.
Clearly conflicted about what his new employer was doing to Asgard, "The Executioner" ultimately decided to do the right thing, and paid for that with his life. It was a heroic, memorable moment in Thor: Ragnarok, but we can't believe there wasn't a way he could have been allowed to live.
As an ally to the God of Thunder, Skurge might have brought a lot to the table, especially if he was setting out to redeem himself after everything he did at Hela's behest.
Skurge's death is the perfect example of a missed opportunity.
7. Arnim Zola
Arnim Zola only played a small part in 2011's Captain America: The First Avenger, but The Winter Soldier delivered a real fan-pleasing moment a few years later when he returned in robotic form.
He didn't get up and start walking around, though that idea was considered by Marvel Studios (that Zola nearly had a cameo role in Ant-Man). Instead, he was blown to smithereens in an attempt to kill Steve Rogers and Natasha Romanoff, and it appears that's the end of the HYDRA devotee.
It's possible he could return, but this felt like a definitive end for the villain.
Perhaps Marvel felt that a walking, talking robot was just too goofy, but Zola is one of Captain America's best villains, and someone who deserved better than this.
6. The Warriors Three
Taika Waititi delivered one of Marvel's best films with Thor: Ragnarok, but his decision to kill The Warriors Three still stings.
Hela had already done enough to establish herself as a threat to Thor and Asgard, and making such short work of Volstagg and Fandral (Ray Stevenson and Zachary Levi) did no favors for anyone. It just wasted a couple of talented actors and two characters who had been overlooked from the start.
Hogun (Tadanobu Asano) got a slightly better ending, but this was a confusing move by Marvel Studios, and likely a rushed way to take them off the table ahead of Avengers: Infinity War.
Like Sif, they should have been M.I.A. from Asgard, setting up a future return.
5. Obidiah Stane
For the longest time, a recurring trope in superhero movies was killing off the bad guys. It seems studios just didn't know what to do with them once they were defeated, and poor Obidiah Stane was a victim of that frustrating trend.
After very nearly defeating Tony Stark, Iron Monger was blown to smithereens and that was the end of that.
Had he been put behind bars, an eventual alliance with Justin Hammer might have been on the cards, while Stane factoring into the upcoming Armor Wars series on Disney+ would have been a fitting next step.
We can only hope his son returns to menace heroes like Ironheart and War Machine.
4. Quicksilver
Quicksilver was introduced in Avengers: Age of Ultron less than a year after a different version of the mutant showed up in X-Men: Days of Future Past.
Fox's version, played by Evan Peters, managed to overshadow Aaron Taylor-Johnson's, but the latter never really got the chance to shine after being killed off so soon. His sacrifice was in equal parts heroic and memorable, but we'd have loved to see Pietro become a full-fledged Avenger.
His sister Wanda has received her fair share of the spotlight since, but Quicksilver could have been a key player in the MCU.
We just hope there are plans for him in WandaVision.
3. Crossbones
With his origin story playing out in Captain America: The Winter Soldier, it made sense for Brock Rumlow to return as Crossbones in Civil War.
Set photos teased an impressive costume design, but little did we know his screentime would be limited to a brief fight with Cap before being blown up by the Scarlet Witch. With that, his story ended, and one of the hero's best baddies ended up being put back on the shelf.
Just think how cool it would have been for Crossbones to come after the new Captain America, Sam Wilson.
Sin could have even joined him, but Marvel Studios missed a trick here, and this stands as one of the few missteps made by the Russo Brothers in the MCU.
2. Baron Strucker
Baron Strucker is a recurring villain in the Marvel Comics Universe, and he once even managed to brainwash Wolverine and use him as a HYDRA agent.
The MCU's version was responsible for creating Quicksilver and the Scarlet Witch, but after easily being defeated by Earth's Mightiest Heroes in Avengers: Age of Ultron, he was killed in his prison cell by Ultron. It was a fitting enough arc for the villain, but one that also underwhelmed.
We're not saying he was going to be a big bad in the MCU, but it was strange he didn't even have a role to play in Captain America: The Winter Soldier.
It's hard not to think of what might have been with this one.
1. Ultron
Ultron is one of the greatest comic book villains ever created, and among the worst foes the Avengers have ever faced.
Making him a one-and-done bad guy in Joss Whedon's sequel was an unusual decision, even if his final scene delivered a far more poignant end than we're used to seeing in superhero films. The Vision, the son, destroying Ultron, the father, was both fitting and tragic in equal measures.
Five years on, it's still surprising there hasn't been a single hint about Ultron's survival, but that could and should change as we head into Phase 4 and beyond.
Perhaps we'll finally get some hints in WandaVision when The Vision miraculously returns from the dead.