The Marvel Cinematic Universe may be due for a British invasion. Rumors of Captain Britain's arrival in the mega-franchise have swirled since a quiet Easter egg in Avengers: Endgame. And with The Black Knight already appearing in Eternals, the potential members of a UK superhero team might already be in play.
Source：https://www.cbr.com/mcu-setting-stage-british-superhero-team/
