The Marvel Cinematic Universe stands alone among franchises in that it may well reap great benefits from the pandemic. Avengers Endgame had brought the franchise to a world-saturating record-breaking close in the spring of 2019 followed by the digestif of the much smaller scale Spider-Man Far From Home in July 2019 (though smaller scale with these gargantuan budgeted action movies is relative). And then just as a new wave of heroes was set to emerge, an unexpected intermission; Kevin Feige couldn't have timed the pandemic better. Not that we're starting any daft conspiracy theories!
With Black Widow's release pushed to July 2021, moviegoers have essentially had a full two year break from the MCU (apart from recent Disney+ tv shows). We think this will actually benefit the MCU (which was at an oversaturation point culturally and bound to begin to falter) as demand is now theoretically pent-up to Endgame