Marvel Studios' upcoming "Avengers: Doomsday" recently ignited intense fan speculation about its first official trailer, thanks to a mysterious green image shared by the Russo brothers. However, a highly anticipated London pop-up event hosted by the duo revealed no trailer, instead focusing on a Doctor Doom-themed coffee promotion, leaving many fans disappointed. 
Joe and Anthony Russo had previously posted a green image on social media. Initially, without clear explanation, fans scoured RGB values, color codes, and even "Avengers: Endgame" timelines for clues. Later information revealed the image was connected to the Latverian emblem, the fictional nation ruled by Doctor Victor von Doom in Marvel Comics.
Given that "Avengers: Doomsday" is expected to feature Doctor Doom as a central character, and the Russos had teased a "surprise" for UK fans during SXSW London, many moviegoers speculated that Marvel might use the event to unveil an official trailer or at least new footage from the film.
However, the London event fell short of public expectations. According to international reports, upon the Russo brothers' arrival, the main activity involved signing Doctor Doom-themed coffee bags. Merchandise on site featured numerous Easter eggs related to Doom and Latveria, including nods to his mother, Cynthia, and Latveria's deposed king, Vladimir Fortunov. The event also reportedly unveiled part of the MCU's Latverian flag design, but crucially, it did not deliver the highly anticipated official trailer.
In fact, "Avengers: Doomsday" had previously screened footage for attendees at CinemaCon. This footage reportedly included a confrontation between Thor and Doctor Doom, but it has yet to be released publicly. While the recent London pop-up continued the marketing buildup for Doctor Doom, the absence of a trailer transformed the soaring anticipation into disappointment.
"Avengers: Doomsday" is slated for release on December 18, 2026, and will be followed by "Avengers: Secret Wars."
via： Gamesradar+