Scarlett Johansson plays the role of Natasha Romanoff aka Black Widow had a costume that looks the same as Ronin’s in Avengers: Endgame. When Thanos finished the infinity stones after wiping out half of the universe, and as a result Thor killed Thanos.
All the Avengers move apart from each other and try to move on, at that time Black Widow still hangs on. When former spy was busy overseeing the Avengers, Natasha focused on finding her old friend Clint Barton or Hawkeye. When Widow went to bring back Barton in Tokyo, at that time Avengers: Endgame introduced Barton’s Ronin look, and it was found that Black Widow had the same attire as Ronin.
Many designs discussed for Black Widow’s new attire everyone has different ideas but there was an idea of dress which looks similar to Ronin.
The decision which was taken by concept artist Wesley Burt’s is due to Ronin and Natasha were going on their journey together. And in that movie, there was a scene where two masked people fighting and the viewers don’t have any idea about who was fighting, so there is suspense. Some of the masks and hood stuff strictly for a reveal. Without the Ronnie looks the same, Black Widow takes a costume more in line with what she was worn earlier.
Even though the design was not used, but it was a fascinating idea to make Black Widow and Hawkeye attire the same. The Snap joined Clint on his killing spree was the much harder version of Avengers: Endgame. Or maybe this was based around their fight and hide who sacrifice their life till the last minute.
In Black, Widow Natasha receives another new suit, which will come just before the ‘endgame movie suit in the MCU timeline. Occasionally Natasha changes her usual looks in the movie, with an all-white costume.