Recently the news came out that The Falcon and The Winter Soldier has been shifted by Marvel to 2021 but now Marvel gives another shock in the form of Black Widow, the standalone movie of Scarlett Johansson.
Black Widow is now postponed to May 2021.

Also, there has been reports that Disney has delayed the release of the movie “Eternals” as well.
Scarlett Johansson-led “Black Widow”, which was delayed from its original May 1 release date, has now postponed to May 7, 2021, according to The Hollywood Reporter.
Consequently, “Black Widow‘s” shift kicks Chloe Zhao’s “Eternals” from February 12, 2021 to November 5, 2021, and moves “Shang-Chi and the Legend of the Ten Rings” from May 7, 2021 to July 9, 2021.
Actor Kumail Nanjiani of Eternals tweeted, “There’s a pandemic. Nothing is more important than health & lives. I can’t tell ppl to go to a movie theatre until I feel safe going to one. Take care of yourselves. I promise it’ll be worth the wait.”