I seem to remember, in a Star trek II treatment, that the first idea was to have a highly evolved couple have Kirk and Khan fight--maybe Decker and Ilyia?
I remember that, too. They were called Sojay and Manta or something like that. Very Superman II.
If we start talking about various script treatments and early unfilmed scripts this is going to get messy and off track, BUT it is an absolutely great topic for a new thread.......
"Unfilmed TOS movies scripts and treatments."
I'm just too darn tired too start one.