The finale of "Vision Quest" included a teaser scene during the credits, laying the groundwork for the return of a Marvel Cinematic Universe character in future Avengers films. The content may be linked to one or both of "Avengers: Doomsday" and "Avengers: Secret Wars."
This scene hints that the character may come under the control of Doctor Doom in the future. However, existing information has not revealed the name of the returning character, nor has Marvel officially stated which film they will appear in, their current status, or how the subsequent plot will develop.
The scene was not included in the advance screening versions previously provided to the media and only appeared when the finale officially aired, creating an unexpected effect. This arrangement is also considered a deliberate move by Marvel to keep related content under wraps.
What can be confirmed is that this hidden content serves as a bridge between works, connecting "Vision Quest" with future Avengers films; it remains uncertain whether it ultimately corresponds to "Avengers: Doomsday" or "Avengers: Secret Wars."