It'll happen because Paramount are desperate right now. They have a known writer/director maestro, who might even want Star Trek be the landmark full stop to his career. They have residual rights to exploit through a feature-film. As the original owner who lost the franchise in a split, they're probably sitting around seeing CBS's burgeoning slate of spin-offs mapped out over the coming years, and all the revenue that's going to be bringing them. So yeah, until Tarantino falls out with them over issues in the script he won't budge on, it'll happen. I actually think he's a huge fanboy of the franchise and while R-rated for realism, I think he knows it's an existing universe where rules can be bent slightly, but never broken. Let him fun with that.