Originally Posted by
Last Son of Krypton
After being ship-teased ever since the DC's shared universe was in its infancy (even playing with the idea of a potential marriage between the two), it was a matter of time before someone thought a story where Superman and Wonder Woman were an actual couple.
In 1987, Alan Moore submitted to DC a proposal for a 12-issue crossover titled Twilight of the Superheroes whose main story should've been set 20 or 30 years in the future and featuring Superman and Wonder Woman as a married couple with two children.
Below are some excerpts from Moore's long proposal (24 pages) that give you a general idea of the story and the role of the Super-Wonder family in it.
The World and Its Background
The world of Twilight is not a world where the superheroes have deliberately taken over, but one where they have inherited the Earth almost by default as various social institutions started to crumble in the face of accelerating social change, leaving the superheroes in the often unwilling position of being a sort of new royalty. Even though government and civic authority has all but disintegrated, the various areas of America each have their own coteries of protecting superfolk to look after them, and the superheroes have thus tended to group into clans, each looking after a certain province. There are numerous "Houses" of this nature dividing America up into a kind of feudal barony system effectively, in terms of politics if not in terms of technology, which is as advanced as one might expect by 2000 A.D.
[...] At the time in which our central Twilight storyline takes place, there are eight "Houses", each containing a different superhero clan, scattered across America, although as we shall see some of these are pretty well abandoned or non-functioning in any active sense.
The Houses of the Heroes: House of Steel, House of Thunder, House of Titans, House of Mystery, House of Secrets, House of Justice, House of Tomorrow and the House of Lanterns.
House of Steel
This is one of the two most powerful clans, and it dominates the eastern seaboard around New York and environs. Alternatively, if I change my mind it could be outside America altogether and set in the Arctic Circle, based around a new Fortress of Solitude. This is because the House of Steel consists of the clan founded by Superman— we have Superman himself, a morally troubled figure who doesn't know what's best to do about the chaos he sees surrounding him, but who has come to accept that the Houses provide the only real permanent structure in a destabilizing world and are thus important to maintain. Superman has married and raised a couple of kids, and the person that he has married is Wonder Woman, who has had an identity change to Superwoman to accommodate her new stature— we see the genuine and powerful love between these two in the face of the perils of the world surrounding them and the desire to do what's best. They are also troubled by their two offspring— one of these is a new Superboy, and he's about eighteen when the story opens, and he's real bad news. The other child is a less delinquent Supergirl, a new one who, like Superboy, has been born of the union between Superman and Wonder Woman but who is much kinder and gentler, more her mother's child. Having three members in the Superman class and Wonder Woman (Superwoman) herself, they are obviously a clan to be reckoned with.
House of Thunder
The House of Thunder is the other major power, and possesses members with power in the same class as that of the House of Steel. The House of Thunder is composed of the Marvel family, plus additions. Captain Marvel himself is the patriarch. [...] Alongside Captain Marvel, there is Mary Marvel, who the Captain has married more to form a bona fide clan in opposition to that of Superman than for any other reason. [...] The other member of the Marvel clan is Mary Marvel Jr., the daughter of Captain and Mary Marvel Sr. Mary Jr. is fated to be part of a planned arranged marriage to the nasty delinquent Superboy during the course of our story, in order to form a powerful union between the two Houses. [...]
I'll post later some excerpts of the outlined plot.