Supergirl's sacrifice in The Flash squashed the fandom's hopes to see Sasha Calle in future DCU films. Now fans can only cross their fingers and wish for an excellent recast once they start working on Supergirl: Woman of Tomorrow. Fortunately, the Maiden of Might's track record in TV, films, and even video games is full of incredible performers, both in live-action and animation.
Source:https://www.cbr.com/supergirl-actresses-resource-duration/