Could have been cool, if Shatner would agree to work with a lesser, young actor. When Wil Wheaton visited the ST V set The Shat shat his awesomeness on him. Roddenberry himself had to come to help. Then again, Wheaton in no RDJ. Yeah, Could have been cool.
But we'd never know the great ST IV Spock.
Alternate universes, indeed.