Re: Star Trek/Star Wars have switched places!
If nu universe elements creep into the prime novels, as long as the story is well written and the characters are true to whats established or changing in a story structure I think the reader needs to just go with it.
I'd EXPECT influences from the JJverse films to affect the prime universe novels. If there is no in universe reason a city/vessel/race/character should look totally different after the timeline split, you have a canon design applicable to both...
Soon oh soon the light, Pass within and soothe this endless night, And wait here for you, Our reason to be here...