OK, after catching up with the New 52, I discovered that the five other members of the 'SHAZAM Kids' from Flashpoint are now given the possibility to be Shazam's new Captain Marvel Family. In this family are the following:
Mary Bromfield (In the original comics, she is Billy's twin (or younger, depending on the continuity) sister who was seperated from his parents. Not srie if that's the case here)
Freddy Freeman (A crippled young man who uses canes to mvoe around. He was Captain Marvel Jr. in the original comics and took over for Billy for awhile)
Pedro Pena: An overweight, shy Latino kid who was the possessor of the Strength of Hercules in the Flashpoint comics.
Eugine Choi: A very intelligent young man who once held the Wisdom of Solomon in the Flashpoint comics.
and Darla Dudley: A highly energetic girl who is very kind to her adopted siblings and was excited when Billy first arrived, and was the weilder of the Speed of Mercury in the Flashpoint comics.
In all, these five could be really interesting characters if they return as Mary Marvel, Captain Marvel (In case Freddy is meant to be this universe's Captain Marvel) and the Lieutenants.
I own none of these characters, they are all property of DC Comics.