Two months ago, producer J.J. Abrams and Paramount Pictures announced plans to go into production later this year on a Star Trek film that reunited the Kelvin Universe cast. Since then, we have heard from various members of that cast who have expressed excitement about doing another film and have had some meetings about it, but they were taken by surprise by the announcement with nothing firm yet on their schedules. The latest to join this chorus is Zachary Quinto, who expects to return to the role of Mr. Spock, but he just isn’t sure when.
Quinto was also “blindsided” by Paramount’s announcement in February
I don’t know that we will do it this year. I don’t know when it will happen. And I always maintain that I would love to do it… But until I get something concrete — ‘We’re shooting this day, here’s your script, get ready’ — I’m in a wait and see pattern. I’m not really attached to it in any way until I have much more definitive certainty that it’s actually happening.
Zachary Quinto "expects" to return. Nothing "concrete".
Ergo, no script, no contract.