If there'd been a 4th season of TOS, the bad episodes would probably start outnumbering the good. So I'm glad it never happened.![]()
With alternate reality, you have to be open to the possibility of uncertainties rather than just drawing a simple straight line based on the trendlines up until that point. We're just assuming that Trek would continue down a spiral of creative brain-drain. For all we know someone else could have been brought in to reinvigorate the thing. I mean, if the suits really wanted the show to continue enough not to cancel it and they saw the warning signs in the quality of the scripts, they'd probably do something proactive rather than just continue to slash budgets and let people go through the motions.