To mark the occasion, Marvel fan Scott Gustin had posted a video on Twitter of a crowd reacting to the moment in Endgame when Captain America (Chris Evans) wields the hammer of Thor (Chris Hemsworth).
In the audio, recorded on the film's opening night, the cinema audience breaks into wild cheering and applause.
Feige, the president of Marvel Studios who has overseen the entirety of the Marvel Cinematic Universe, had not tweeted since November 2018.
But he broke his Twitter silence to respond to Gustin's video, saying that it was "a nice reminder of what we were all doing almost exactly 1 year ago. A nice reminder of what we will all be doing together someday again."
While Feige may have simply been referring to the communal act of going to the cinema, some fans have interpreted the statement as a hint that there could be more Avengers movies in the pipeline.
The next "phase" of MCU films have already been announced, although the ongoing pandemic has caused significant delays. Black Widow, which was scheduled for a release in April, has been pushed back until 6 November, while The Eternals has been moved from November until February.
— Kevin Feige (@Kevfeige)April 7, 2020
There are currently no confirmed plans for a new Avengers film, but given the Avengers has been the most commercially successful arm of the Marvel film franchise, it is widely expected that Feige is planning one for the future.