A little more complicated in that there's probably a lot of paperwork and briefcases involved, such that it's not like CBS is going to back out tomorrow because the ensuing fines/fees/whatever would be massive. But if it ever got to the point where CBS was so unhappy they'd be willing to breech, you never know.I think it's a little more complicated than that. You imply that any film studio has the permission to make Trek movies as long as CBS allows it, which isn't true. CBS needs Paramount as much as Paramount needs them.
The point is, look at the end of any Beyond trailer and you will see: "Star Trek and all related marks and logos are trademarks of CBS Studios INC."--which is just a legalese way of saying CBS is the proprietary owner of all things Star Trek. Which is what I said in the first place.