Series Disney+ The Falcon and The Winter Soldier directly followed the events ofAvengers : Endgame. In history, Bucky (Sebastian Stan) et Sam Wilson (Anthony Mackie) were teaming up to stop a team of international anarchist terrorists. Throughout the show, Sam Wilson was in constant dilemma to take back the shield of Steve Rogers and endorse his legacy for the MCU’s sequel. In particular, he faced John Walker (US Agent) who was originally chosen by the government to take over the costume.
At the very end of the series, Sam Wilson ends up accepting the role of Captain Americathus clearly implying the start of a fourth film, after First Avenger (2011), The Winter Soldier (2014) et Civil War (2016). Anthony Mackie will resume its mythical role of Captain America flying and it is not impossible to review Sebastian Stan on Bucky in the spans of the MCU.
In an interview with Kevin Field from Yahoo Entertainment, Sebastian Stan briefly commented on how he felt about the upcoming movie Captain America 4 :