Walter Hamada was promoted to President of DC Films last January and he's been trying to make heads or tails of the DC Cinematic Universe ever since. It's no easy feat. There's a flood of rumors coming out of DC regarding the films.
The first being that Ben Affleck will be out as Batman in Matt Reeves' The Batman. In a piece about Geoff Johns stepping down as a DC exec, Deadline wrote:
There is an opportunity for Toby Emmerich [Chairman, Warner Bros. Pictures Group] to really reshuffle the executive deck on the feature side and turn DC into something more formidable than it is right now, even as a James Wan-directed Aquaman is coming and Wonder Woman 2 is in production, with Matt Reeves rebooting Batman for a new standalone franchise, likely with a new actor to play the Caped Crusader after Ben Affleck's stints in Batman v Superman and Justice League.
This lines up with reports that The Batman will revolve around "a young caped crusader," instead of a Bruce Wayne with an enormous phoenix back tattoo.
The rumored current DC main movie slate only contains Aquaman, Shazam!, The Flash, and Wonder Woman 1984. Meanwhile, DC is workshopping the idea of a new label for their stable of films that fall outside of the main DCEU, which would include Joaquin Phoenix's Joker movie.
Hamada has an uphill battle ahead of him if he wants the DCEU to compete with the Marvel Cinematic Universe.