Due to the reboot of the character following Crisis on Infinite Earths, numerous things no longer made sense in terms of continuity as it related to the remainder of the DC Universe. As her first overall appearance was now in continuity around the Legends miniseries, it no longer made sense that she was a founding member of the Justice League of America. This founding position was instead given retroactively to Black Canary. Later it was decided that she should be given this position back and thus both she and Black Canary were considered founding members of the Justice League. In reference to the Justice League though, although she has more than 400 combined appearances therein, she has had most of her character development in her own series.
In 1944, Gaines and Marston signed an agreement for Wonder Woman to become a newspaper strip, syndicated by King Features. Busy with the newspaper strip, Marston hired an 18-year-old student, Joye Hummel, to help him write comic-book scripts. Joye Hummel, now Joye Kelly, turned 90 this April; in June, she donated her collection of never-before-seen scripts and comic books to the Smithsonian Libraries. Hiring her helped with Marston’s editorial problem, too. Her stories were more innocent than his. She’d type them and bring them to Sheldon Mayer, Marston’s editor at DC, she told me, and “He always OK’d mine faster because I didn’t make mine as sexy.” To celebrate syndication, Gaines had his artists draw a panel in which Superman and Batman, rising out of the front page of a daily newspaper, call out to Wonder Woman, who’s leaping onto the page, “Welcome, Wonder Woman!”
Would DC Comics introduce Diana's twin brother only to dispatch him so soon? And would he be defeated by Diana, after being manipulated by the Dark Gods? We would wager that Jason sees reason at some point - Diana's greatest superpower is love, compassion, and truth, after all - but anything is possible. Especially with the final splash page promising a war between gods that lives up to the name.
^ Campbell, Josie (July 1, 2014). "Meredith, David Finch Discuss Taking Wonder Woman More 'Mainstream'". Comic Book Resources. Archived from the original on November 18, 2014. Azzarello and Chiang hand over the keys to the Amazonian demigod's world to the just-announced husband-and-wife team of artist David Finch and writer Meredith Finch. Archive requires scrolldown
Issue #600 introduced Wonder Woman to an alternate timeline created by the Gods in which Themyscira had been destroyed and the Amazons scattered around the world. In this timeline, Diana is an orphan raised in New York who is learning to cope with her powers. The entire world has forgotten Wonder Woman's existence and the main story of this run was of Diana trying to restore reality even though she does not properly remember it herself. Diana has no memories of her prior adventures as Wonder Woman, recollecting her memories in bits and pieces and receiving different abilities and resources (such as the power of flight and her lasso) during the progression of her adventure. A trio of Death Goddesses called The Morrigan acted as Wonder Woman's main enemies. Diana ultimately defeats the evil goddesses and returns everything back to normal.
The Diana Prince alias also played an important role after the events of Infinite Crisis. Wonder Woman was broadcast worldwide killing a villain named Maxwell Lord, as he was mind controlling Superman into killing Batman. When Wonder Woman caught him in her lasso, demanding to know how to stop Superman, Maxwell revealed that the only way to stop him was to kill Lord, so as a last resort Diana snapped his neck. To recover from the trauma of killing another person, the Amazon went into a self-imposed exile for one year. On her return to public life, Diana realized that her life as a full-time celebrity superhero and ambassador had kept her removed from humanity. Because of this she assumed the persona of Diana Prince and became an agent at the Department of Metahuman Affairs. During a later battle with the witch Circe, a spell was placed on Diana leaving her powerless when not in the guise of Wonder Woman.