Earlier last year David Mack, one of Treklit’s leading authors, suggested that To Lose the Earth was the last planned book in the Treklit continuity, as future releases would be centered on the current shows. It appears that a finale of sorts is in the works. From TrekCentral:
Not only does the description of the trilogy sound ominous, but “Coda” literally refers to a concluding passage or section of a work. I can’t say I like the idea of an official ‘end’ to the Trek literary universe that’s grown over the last twenty years: at least if it had died by neglect we could always pretend they’d resurrect it. Now the authors sound like they’re being enlisted to snuff out their own creation.
Ah, well. At least we have The Orville.