Currently the only other movies scheduled to come out in April 2019 are The Voyage of Doctor Dolittle and an untitled space movie from Disney, both of which will be released on the 12th.
Of course, let’s not forget that a lot of unexpected things can happen in a movie’s creative development, so until Warner Bros and DC officially announce Shazam’s release date, it’s best to pencil the blockbuster in for April 2019 rather than put it in ink.
Shazam will begin principal photography early next year, but as Sandberg noted, there will still be plenty of time after the shoot has concluded to work on the visual effects, such as how the juvenile Billy Batson will transform into the adult, superpowered Shazam.