Re: Where No Man/Woman/One/Broad/Dame/Skirt/Chick/Sombrero Has Gone Be
In in-universe terms, the change from "where no man" to "where no one" appears to be Kirk's doing, from his log at the end of ST6. Now, how would the details of this work out in practice?
I suppose Kirk's last log would become popularized at some point, when a future Chaikin writes his biography or something. And perhaps that difference of one word would become just as hotly debated as Armstrong's "a", eventually forcing Starfleet to reconsider its motto (for ships named Enterprise?) lest the silly charges of sexism or specieism mar the organization's image.
But why did Kirk change the wording in the first place? When he dictates his log, there is little incentive for him to start being polite to the females of his species all of a sudden (if anything, the kiss with the shape- and sex-changer should have made him entrench even deeper in his old ideas). There might be a bit more incentive to start being polite to alien species, as Azetbur's accusations of the Federation being a "H. sapiens only club" might have hit home.
Still, the most likely reason for the rewording would be the conflict between Kirk's winding-down career and the future awaiting his starship, other starships and Starfleet, mankind and Federation. During his career, Kirk went where no human had gone before - but at this historical juncture, he could set his ambitions higher, letting his imagination soar where nobody from any species had gone before. Sure, a place without anybody there might be a rather dull one, but it would still be a goal worth aiming for, a horizon beyond.
Essentially, then, ST6:TUC retcons the "man" to "one" change from a gender-politically correct one to an inspiring one... Also explaining why 24th century Starfleet would be happy to adopt the new version.
Timo Saloniemi