I'd say a certain sameness spreads across it all. Even in the last three Trek movies.
ST09 = driven crazed and amoral baddie looking for vengeance; just wants to watch the world burn.
STID = amoral baddie becoming crazed and looking for vengeance; wants to burn worlds and conquer them.
STB = driven crazed and amoral baddie looking for vengeance; just wants to watch the world burn.
In my opinion, something in Trek went monotonic when it went to the big screen, even with the new movies. The openness of the Trek format and the strength of its main characters lends itself to many different types of good story-telling, even within an action and adventure genre. The best Trek stories, TOS or otherwise, often involved imaginative or complex antagonists who drove the conflict, but couldn't really be called villains and certainly weren't evil or amoral. Think "The Doomsday Machine", "The City on the Edge of Forever", "Balance of Terror", "The Enterprise Incident", "Journey to Babel", "Devil in the Dark", "The Ultimate Computer".
Could stories like those (not any one of them, specifically), with unusual conflicts and antagonists who create ambivalence, be taken to the big screen as a "Star Trek" movie? I'd think so. I think lately Trek hasn't been using as many colors as it has on its disposal in its Crayon box. And, if box office preferences are changing, and people are growing weary of "constant noise, speed, and and explosions," then I'd think of all the franchises out there right now, "Star Trek" is one most adaptable to those changing preferences.