I don't think they should do
Star Trek 4 without Chris Pine. If they can't get him back, they should just reboot again.
Money, sure WE on the board know who she is. Does the general public? Will a random MCU fan who never watches Star Trek buy a ticket to ST4 because she is on the poster? I have doubts..
Ummmm.... as unsavory as this sounds... and I'm
not too crazy about this AT ALL... their horny male demographic would give a shit if it was a "hot chick" in which case they'd be "interested" in Winona Kirk.
I hate this answer but that's how you get a ton of the stereotypical young male demographic to watch something. That and shit blowing up (or more accurately "shit getting blown up
real good"), an action star, some fights, T&A, red meat, yadda, yadda, yadda.
Turn
Star Trek into a Bruce Willis, Vin Diesel, Tom Cruise, Jason Stathem type of action vehicle and you can have anything you want in the films because no one will care. They'll be too busy focused on what they
really went to see. Continuity will be like a porno plot, then you'll have true "continuity porn".
And, no, this type of movie would
not appeal to me at all. So it's not even remotely what I want. BUT it would be a safe way to make the big bucks they crave. Unless it bombs.