And on your PD comment. The Enterprise-C warped in and saved Klingons ships from being destroyed without asking permission. Look what happened with that.
...If the disaster had been limited to the Romulan star system and the Romulans had not asked for help, the Federation would be bound by the Prime Directive. We have seen the Federation leave races to die before. It's not their place to choose who lives and dies.
That was actually one of the things I always disliked most about TNG: its radical expansion (and IMHO misinterpretation) of the Prime Directive. Allowing other cultures the self-determination to develop in their own directions is one thing. Allowing them to go extinct due to forces outside their control is quite another, and simply can't be justified by the same moral calculus.
Humanitarian aid shouldn't be prohibited as "interference," unless one believes there's a higher destiny driving such disasters that shouldn't be defied... which actually flies right in the face of the whole self-determination ethos.
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On the topic of the thread, though...
Yeah, everything about the
Kelvin fits into "Prime" continuity, except for the circumstances of its destruction and Kirk's birth. (This would unfortunately appear to include the fact that its crew complement was 800+, which I can't begin to account for given what we know of pre-TOS history.)
(I noticed with some interest that the movie didn't actually call Kirk's mother by name... is there any canonical reference for it being "Winona," or is that still fanon?)
Likewise, the circumstances of Romulus' destruction c. 2387 go in. The tricky thing there, if one is being super-strict about "canon," is whether the additional details of those circumstances from
Countdown go in, since they were technically revealed in a "licensed" story.
Just speaking for myself, but I'm perfectly happy to accept "Nyota" and McCoy's divorce as "grandfathered in." Even though strictly speaking we've only confirmed them as valid in nuTrek, they're consistent with longstanding assumptions about the original universe, and were obviously based on same by the writers, not dreamed up from scratch.
(Someone posted elsewhere that "Nyota" was also used in
STV:TFF, which would resolve that issue, but I haven't seen it recently and can't confirm.)