Re: The characters and universe post-TOS
Still I think canon must be forced into accepting a ten year gap between TV and TMP, as Kirk sets a fixed date in TWOK, when he tells Carol he had not seen Khan in fifteen years, which--considering the real life 1967 airdate of "Space Seed" to the 1982 release date of TWOK--is exactly fifteen years. There's not much phyisical difference between the actors from TMP to TWOK (aside from Doohan gaining a few extra pounds), so we have to assume TMP occured only a few years earlier---probably three.
If that's the case, then any published dates of TMP occuring a mere 2 years after TOS cannot be taken seriously.
I think a shorter gap between TMP and TWOK makes sense. It doesn't require Kirk to be repromoted to Admiral and the Enterprise
could have never returned to frontline service. Merely being a testbed vehicle for new technologies and then being demoted to training-ship status.
The theory of a longer gap between TOS and TMP has grown on me over the years. Also, if there's a seven to ten year gap between the two, it makes it easier to explain the radical changes we see in TMP.
"...the most elementary and valuable statement in science, the beginning of wisdom, is I do not know." - Lt. Commander Data, "Where Silence Has Lease"