I found some old Q&As and stuff on the old Psi Phi site:
https://web.archive.org/web/2001042...phi.org/cgi/upc-db/feature/new-ds9/plots.html
Marco refers to
Avatar as "our relaunch story" (24 June 2000) and describes the books as "a complete relaunch of Pocket's DS9 publishing program" (23 June 2000). On other pages, he says things like, "the following May was determined to be the best month to relaunch" (18 Aug. 2000). At one point he does use the phrase "post-finale books" (21 Sept. 2000).
But some usage is more ambiguous, seemingly referring to the books as set, such as when Marco says, "there's little else in the [
Millennium] trilogy that impacts the relaunch" (22 Jan. 2001), or Keith says, "sales on
Millennium and
The Lives of Dax were pretty good, which bodes well for the relaunch" (22 Feb. 2001). Margaret calls them "the relaunch books that Marco is doing" (3 Mar. 2000).
I'm sure the fact that Psi Phi called it "the relaunch" was influential, given it basically
was Internet lit fandom in those days.
I initially used "relaunch" like everyone else, then adopted "post-finale novels" to be pedantically correct, then came back to "relaunch" because it's two syllables instead of six.