Another blunder from the DCCU. You don’t remove his trademark moustache! It’s part of his cover as Clark Kent!
In all seriousness. Due to overlaps in schedule between re-shoots for the JLA movie and Henry Cavil’s next movie, a certain “Mission Impossible 6" (never heard of that franchise) for which he had to grow a (pretty nice) stash, we will get digitally shaved Superman. I just hope the CGI is up to date...
I also wouldn’t mind if he just randomly had a moustache in some scenes.
Batman : Eh - when you came back from the dead, did you...?
Superman; Did I what?
Batman: Uh... nothing. Never mind.