(My apologies, I just can't bring myself to call it Star Trek 4, that came out in 1986)
Anyway, the Kelvin Timeline Spock, Zachary Quinto has spoken about the currently stalled 4th Kelvin entry. Appearing at the Television Critics Associate panel for to promote his forthcoming AMC series NOS4A2, the topic of the 4th movie came up.
“I mean, it’s been a broad conversation that we’ve been having for a while in terms of what’s the future of the franchise. It’s in process so I don’t know exactly what to say other than there’s no plans for a movie happening at this moment.”
Despite having a full slate, Quinto would make room for Trek.
“I would love to [return]. I feel like it’s been an anchor of my creative life for the last over ten years now so if I can go back to it, I’ll always be happy to. I love my Star Trek family so we’ll see how it goes.”