Latest Avengers: Endgame deleted scene shows an alternate Black Widow death. The orginal death scene was Natasha Romanoff and Clint Barton are tasked with retrieving the Soul Stone from Vormir, which requires one of them to sacrifice themselves. They fight over who gets to die, and Natasha “wins.
The Avengers: Endgame deleted scene begins similar to theatrical version. Thanos and his army arrive on Vormir, Clint and Natasha are pinned down by Chitauri. Despite Natasha fatal injuries, she rushed towards the cliff-edge in order to sacrifice herself. Clint tried to rescue Natasha but he failed, and she dives off the edge.
The the deleted sceme may make sense, but it's not effective as the final scene. It's poorly acted and to put Thanos to the scene lessen the emotional drama between the two long-life frieds are forced to say goodbye to one another. The Russo Brothers made the right decision to reshoot it for a different version of Black Widow's death in Avengers: Endgame.
Black Widow solo movie will be in May of 2020 and Hawkeye tv series is currently on target for a late 2021 release on Disney+