Netflix recently released a brand new teaser for Stranger Things Season 5. The very short and intense clip has hinted at a massive twist related to Eleven, played by Millie Bobby Brown. The new 2025 release montage teaser from Netflix finally unveiled major plot details for Stranger Things Season 5. Among the biggest takeaways from the teaser is that Jane Hopper, better known as Eleven, has gone missing. There are multiple “Missing Teen” posters featuring her name and face, leaving fans questioning what led to her led to her disappearance. As the final season is nearing, this revelation has brought along so many fan theories about her fate and final battle against Vecna.
Eleven Will Need Help Against Vecna
With Vecna still an inevitable enemy, one theory suggests that Eleven had to disappear in preparation for the final battle. It might seem like she has retreated into her powers or is looking for guidance from an unlikely source. Perhaps, in her fight against Vecna and forces of the Upside Down, Eleven will have to rely on allies or new power, such as that shared by the remaining characters who probably possess hidden, unexploited abilities of their own. Such a move will not only put her back full force but would also involve all the crew to take down evil lurking in Hawkins.

Sullivan’s People Might Be Behind This
The theory of the disappearance of Eleven among the fans is that the government—or more precisely, Sullivan’s people are behind this. In Season 4, we saw Dr. Owens and his team, including Sullivan, trying to trace Eleven.
Eleven Chose To Hide
Another theory is that Eleven has gone missing on her own, maybe to protect those she loves. After everything she has been through-from battling the Mind Flayer to confronting Vecna, Eleven may have realized that her enemies will stop at nothing to find her and use her for their own gain.
Eleven’s Connection To The Upside Down
Throughout the series, Eleven’s powers have been closely tied to the Upside Down, and as the stakes have increased, so has the toll on her. A theory is that the increasing strain on her abilities could have led to a breakdown or a forced retreat. She may be trying to recover from the damage caused by her previous encounters with the alternate dimension.
A Hidden Enemy Might Be Controlling Eleven
This means that some speculators believe the new villain might be influencing her, or possibly an ally not yet known might be controlling Eleven. It’s possible that somebody with similar powers to hers might have taken control over her and could be the cause of this disappearance.