ATMachine said:

So... the films would have rhymed?

That was what I gathered. Thinking back on it, there was a Nicolas Meyer connection with that time travel story line. This is foggy, but if memory serves the time travel idea was from Nicolas Meyer before Leonard Nimoy became the director. Harve Bennett asked Meyer for potential ideas for III as II was wrapping...

This may be why he was asked back to write the 20th Century Segments on IV. It was when Nimoy became director that lots of scrip and story changes took place on III. Other cuts involved The original Romulan Commander's back story, that was briefly changed to scenes of The Klingon Commander's Back story about how he and Valkris commandeered the BoP from The Romulans and how they first learned about Genesis. Gene absolutely hatted that they blew up the Enterprise! I do remember that most clearly.