Henry Gayden is Returning to Write the Shazam! Sequel

Shazam! is a success, over-performing expectations with an opening of $53.5 million domestically (plus $3.3 million from previews), $102.3 internationally, for a worldwide total of $159.1 million on a budget of just $100 million. And with success comes sequels!
The Wrap is reporting that the writer of the first film, Henry Gayden, has been tapped to pen the sequel for the film. David F. Sandberg and Peter Safran are also also expected to return. Sanderg directed the first film while Safran was the producer.
Currently it’s unknown exactly what the plan is for a sequel or a time frame. Dwayne Johnson’s Black Adam is set to film next year. Black Adam is a classic villain from Shazam! and Johnson was an executive producer on the first film. It’s expected the two characters will clash at some point but one of the post film scenes hints at another classic villain to come.