Could Shazam be referenced on Batman v Superman: Dawn of Justice ?

We don't know anything except Lexy is gonna be in this as a villain. We have this area that apparently it's for multiple locations.





Kandaq too? Black Adam?





I say this because why the Rock announced so early his appearance in a 2019 movie? They must be planning something for him early that isn't Shazam related? IMO he can appear before Shazam, but we'll see. What do you think? Would you like the idea?