Aside from Matt Reeves’ The Batman being delayed, two other upcoming DC films have also gotten their release date changed, Shazam 2 and The Flash.

Shazam 2 was originally slated to hit theatres on 1 April 2022 but it got moved to 4 November 2022. Whereas The Flash will be released earlier than initially planned, with a 2 June 2022 release date instead of 1 July 2022.
The Flash has had a troubled development from the start, with star Ezra Miller having to rewrite the script in hopes of getting the film off the grounds. Unfortunately, videos of Miller assaulting a female fan (via Comicbook.com) has surfaced online, which leaves the future of The Flash unclear once again.

Other films from Warner Bros that have been delayed include a prequel to The Sopranos which is moved from 25 September 2020 to 12 March 2021, an Elvis Presley biopic starring Austin Butler and Tom Hanks which is moved from 1 October 2021 to 5 November 2021, and Will Smith’s King Richard which got moved almost a whole year from 25 November 2020 to 19 November 2021.
Germaine is a fun-sized introvert who loves nothing better than sleeping in on rainy days. She can be found reading fanfiction and manga while still waiting for her Hogwarts acceptance letter. It’ll come eventually.