While Scarlett Johansson was originally unsure about wanting to do Black Widow, the movie’s story ultimately inspired her to suit up one more time as the OG Avenger. Rather than being an origin story or traditional prequel, the delayed movie will be set in between the events of Captain America: Civil War and Avengers: Infinity War. Natasha should once again be a fugitive, and will be reunited with her original family, played by the likes of David Harbour, Florence Pugh, and Rachel Weisz.
Article source: https://www.cinemablend.com/news/2492741/in-inevitable-news-marvel-finally-delays-black-widow