Donna Troy -code name

[Mel Dyer]

The interviews I saw, they stated she was an alternate Mary Marvel and Olympia was an alternate Diana.

I saw the same interview that you did and understand that Superwoman was the female star of the Super Family, as is Mary with her Marvels. They clearly play similar positions.

The system of Syndicate crime families was explained very thoroughly in JLCOTE, and it was clearly shown that Superwoman headed the Super (Shazam) Family, just as Owl Man headed an evil version of the Outsiders. In fact, ..most of the lower-ranking family members, referred to as 'made-men', were characters, with their own unique powers and costumes. While Superwoman, like Mary with the Marvels, was clearly the most prominent female in the Super Family, she wasn't one of the Supers. She was their 'boss', and they were outfitted to reflect her standard.

JLC' character designer, Jerome K. Moore, identified the film's alternate version of Mary Marvel (a blond, who appeared on a computer in the movie), as 'Mary Mayhem'. He was the character designer.

As for Donna in TITANS #2, she's apparently ..just plain 'Donna Troy'. No exciting, new codename...