It's interesting to consider this thematic contrast between the swan song of TOS and the swang song of TNG.
From
The Undiscovered Country:
Azetbur: What's happened? What's the meaning of all of this?
James T. Kirk: It's about the future, Madame Chancellor. Some people think the future means the end of history. Well, we haven't run out of history quite yet. Your father called the future 'the undiscovered country.' People can be very frightened of change.
Azetbur: You've restored my father's faith.
James T. Kirk: And you've restored my son's.
Compare "The Last Generation:"
Picard: If ever there was better evidence that the past mattered... it's right here.
Geordi: How many times has she managed to save the world?
Riker: No doubt more than the years will allow three old men to remember.
Geordi: You know, it's difficult to imagine what we all might have been without her.
Riker: Different, certainly. But certainly not better.
For all that their show was called
The Next Generation, the thematic preoccupation of "The Last Generation" is with past glory, whereas
The Undiscovered Country is much more concerned the future. Where "The Last Generation" literally depicts the older generation as having to fight against the younger generation who have all been brainwashed by evil foreigners using scary technology,
The Undiscovered Country is literally about how the older generation needs to get over its fear of change.