According to the theory that most episodes of episodic TV shows happen in alternate universes of their own, separate from the alternate universes of the other episodes, it would be probable that the next generation era shows are not sequels to the episodes where such discoveries were made.
Which TNG era episodes are known to be sequels to TOS era episodes?
Voyager "Flashback" and TNG "Unification" are sequels to The Undiscovered Country but what previous movies and episodes is The Undiscovered Country a sequel to?
Spock says he's been dead before, which probably makes it a sequel to II, III, & IV. In Final Frontier Kirk says he lost a brother but got him back again. So Final Frontier seems to be a sequel to "Operation Annihilate!" and II, III, & IV. Star Trek II: The Wrath of Khan is a sequel to "Space Seed".
In "I, Mudd" Chekov doesn't recognize Harry Mudd, implying Checkov was not aboard soon enough to experiemce or hear about "Mudd's Women". In "The Deadly Years" Chekov's reaction to corbomite implies he was aboard soon enough to experience or hear about "The Corbomite Maneuver". So "The Deadly Years" and "The Corbomite Maneuver" should be in an alternate universe where Chekov came aboard much sooner than in the alternate universe of "Mudd's Women" and "I, Mudd".
Since Chekov and Khan recognize each other in Star Trek II: The Wrath of Khan, "Space Seed" and Star Trek II: The Wrath of Khan should be in an alternate universe here Chekov joins the crew earlier than in some others, possibly the alternate universe of "The Deadly Years" and "The Corbomite Maneuver".
TNG "The Naked Now" is a sequel to TOS "The Naked Time".
DS9 "Trials and Tribble-ations" is a sequel to "Arena" and to "The Trouble with Tribbles" Which mentions the Organian peace Treaty and so seems to be a sequel to "Errand of Mercy".
TNG "Relics" Scotty mentions events in "Wolf in the Fold", "Elaan of Troyius", and "The Naked Time".
So "Encounter at Farpoint" and all later episodes of TNG, DS9, and VOY should be sequels to the two pilot shows "The Cage" and "Where No Man Has Gone Before" plus "The Corbomite Maneuver", "Space Seed", "The Naked Time", "Wolf in the Fold", "Elaan of Troyius", "Operation Annihilate!", "The Deadly Years", "Errand of Mercy", "The Trouble with Tribbles", "Arena", Star Trek II: The Wrath of Khan, Star Trek III: The Search For Spock, Star Trek IV: The Voyage Home, Star Trek V: The Final Frontier, and Star Trek VI: The Undiscovered Country.
But I don't seen any reason to make TNG, DS9, and VOY sequels to episodes where radical new technologies are discovered that are never developed and used even a century later.