But that of course sets up the question of whether or not the spinoffs are worthy of a reboot in the future as well, or if the new continuity will spawn a whole new series of 23rd century spinoffs.
Everything that's been part of Star Trek
is grist for the mill, and future producers and writers will combine, recombine, slice, dice and use it in every which way if they think they can get a successful production out of it.
You can pretty much bank on Kirk one day confronting the Borg, one way or 'tother.
You can call TOS the "least sophisticated" or "worst understood" part of Trek, but that's a backward way of looking at its strength as compared to the later versions: it's more open, simpler, less self-consciously over-delineated than the 24th century elaborations. I've always found the modern Trek shows to be far less plausible in terms of story, faux history and technobabble technology precisely because they tried to answer too much and did it in pretty narrow and under-imagined ways. They created a fake future by the simplest kinds of analogies with the present, based on representations of present
events in overly broad, simplistic strokes in order to make their invented details quickly identifiable and accessible to a large audience.
TOS was brilliant in telling us very little about the culture which spawned Kirk and McCoy and the other folks. We had to assume it was similar to our own - we didn't even know, back in the day, how far from now the show took place - because the people talked and thought like us and seemed to have had similar experiences to ours. But the only part of that culture we really got even a passing look at was the Star Fleet, portrayed mainly as a contemporary navy. That was very clever, given that due to a quarter century of general conscription most Americans at that time had a reasonable familiarity with military life and could intuit that our people lived more regulated, tradition-bound and less luxurious lives than the great unseen mass of folks they served in the name of.
It's not necessary to know a thing about the Federation government or economy to understand the lines of authority and social structure aboard a vessel when the characters wear the rank of American naval officers.