Could you remind me when?
I guess my view is coloured by the fanzine stories of the day, TAS's "The Practical Joker", and novels like Diane Duane's Rihannsu saga, one of which was even called "Honor Blade". But my lasting memory is of Romulans being associated with honour. When I read "Return to Genesis" and the first draft of ST III, which involved a stolen
Romulan Bird of Prey and all that dialogue about honor and Klingon pirates.
It then was quite jarring to me when the Klingons of TNG were suddenly taking about honor. That is my perception. Obviously not yours.
While this doesn't answer your questions, I did find my old blog entry about the FIRST DRAFT script that I own of "ST III: The Search for Spock", dated March 23, 1983 -- well after the Romulan crew of "Return to Genesis" had officially morphed into a
Klingon crew.
Mr Bennett has this to say about TMP and ST III's controversial makeup change to the Klingons from their TOS and TAS days:
"Present are the 1ST LORD of the Klingons, and his command staff. The variety of Klingons will be fully explored. Elders have been seen in STAR TREK I. Forehead bumps are marks of age and wisdom, not common. What is common is that they are a dark race of large and frightening appearance."
The "elderly" Klingon idea has obviously been nixed by the REV. FINAL DRAFT script of September 13, 1983, because Valkris wears a half-veil to hide her own forehead bumps from the
Merchantman crew, and Captain Kruge is described as a
"handsome but frightening presence, and relative youth".
(Since those early days, of course, we've seen Alexander, Worf's son in "The Next Generation" series, as a toddler with a matching bumpy forehead to his Dad's. Then we had Worf's enigmatic comment in DS9's "Trials and Tribble-ations", and a two-part explanatory episode about the origins of smooth-foreheaded Klingons in "Star Trek: Enterprise".)
The early script also specifies a flotilla of Klingon heavy cruisers, and Kruge's cloakable Romulan Bird of Prey that
"Trek buffs will recognize" from its
"distinctive bird & wing motif". After they watch the Bird of Prey turn visible, the script goes on:
1ST LORD: What is this? None of you knew?
3RD LORD (hastily): It is his toy, sir. A Romulan prize. He has perfected their Cloaking Device.
1ST LORD: Commander Kruge, I want you here... Now!
INT. BIRD OF PREY BRIDGE - ON KRUGE
KRUGE: Always your servant, my Lord.
(He turns and CAMERA reveals his CREW, the most awesome collection of large, cruel and piratical men since the Pittsburgh Steelers of the Seventies. We will see more of them later.)
KRUGE: Well, my jolly lads, a few more triumphs like this and we'll all be back in prison.
(then turning)
Try to behave yourselves while I'm gone.
My take on it all at the time? I reckoned that
this Kruge probably should have had a Klingon parrot on his shoulder (but perhaps the lizard/dog from the REV. FINAL script ate it?)
A major character difference is the addition of vulcanoid (Romulan?) defector, Galt, who essentially fills the role taken by Maltz the Klingon in the final film. Galt is actually welcomed back to Vulcan by Sarek at the end of the movie.
Towards the end, instead of the REV. FINAL DRAFT and FINAL SHOOTING script version of Kirk saying to Kruge,
"I... have had... enough... of you!" the FIRST DRAFT script has Kruge saying,
"The last face you see, Kirk. The last face you ever see."
He then grabs Kirk in a choke hold, they struggle, and Kirk seems doomed -- but when the zombie-like Spock grabs Kruge from behind, Kirk is able to break free, retrieve the Klingon dagger and throw it into Kruge's back. Then he asks Galt to beam them up, abandoning several other remaining Klingons to their fate on the doomed Genesis.