I'd almost forgotten that The Rock is set to play Black Adam. Ever since that casting announcement, that movie seems to have gone very quiet while the actor is off making tons of movies and the DCEU is trying to scramble and get the core Justice League team in place.
However, he totally is coming to the universe, and it seems he was spending time with Superman himself, Henry Cavill this Christmas. In an Instagram message, Cavill showed the two drinking, referred to himself and The Rock by their Superhero monikers and is promising that he was excited for the future.
Also, he added:
Today we drink like gentleman and come together as friends
But what about tomorrow? That's a nice hint that the two are likely to clash in the DCEU at some point.
Take a look: