We Were So Close to Female Doomslayer... Doom Eternal Director Reveals Secrets
Could Doom Eternal have had a female protagonist? id Software's Hugo Martin claims that such an option was seriously considered.

With the Doom.
Martin stressed that it wasn't a simple reskin, i.e. swapping out Doom Slayer model for a female version. The director emphasized that the female protagonist was to be a completely new character, with unique combat style, weaponry, glory kills, etc., all things that would have a significant impact on gameplay. Of course, the game would still come down to pure, brutal aggression, but of a different kind than in the case of Doomguy.
We'd like to point out that this is not an announcement of the developers' plans for the second DLC for Doom Eternal or the next instalment of the series. Although it's true that after Martin's statement the idea found many ers on social media. Some fans connect it with the possibility of the return of Crash - the Doom Slayer's drill instructor, who appeared only in the multiplayer mode of the Quake series - and making her a full-fledged character.