Shazam director David F. Sandberg has brought into the public consciousness the idea of making Shazam 2 a musical.
tweeted that he has been getting comments from, presumably, kids and parents of kids asking for this. Whether these are real comments, or something Sandberg himself had written, like the fake script page he leaked for the first movie, or perhaps even a concept being pushed by Asher Angel's management, Sandberg, by putting this out there, is probably considering this concept and sending out feelers for opinions. If that is the case, the reaction to his tweet is evenly divided between those for and those against.
As for my opinion on this, if you read my review of the first movie, I made it clear. The standard for bad ideas was established by choosing to base the film on Geoff Johns' New52 Shazam instead of Fawcett's original Captain Marvel, and choosing to use a (needless) Superman cameo where his face is cropped out of the shot. Making the sequel a musical is no worse an idea than either of those two. So more power to Sandberg if Shazam 2 is to be a musical. And with the cast he has, they could pull it off nicely.
Who knows... perhaps #releasethesnydercut may by superseded by #makeshazam2amusical.