In The Undiscovered Country, the crew's given orders to return to spacedock to have the Enterprise decommissioned and instead decide to get an attitude and run off with the "A" to parts unknown. This is one of those moments, I guess, where it's "just a movie" and we're not supposed to think on it, too much, if at all ... but ... what are their intentions? Is it to go off on a 5 year mission of their very own? What are we, the audience, supposed to be left to assume here about what they're doing with the ship, instead of having it scuttled, or whatever?