Therin of Andor wrote:
Not sure that the 50th anniversary is going to be a selling point to ordinary moviegoers... And the fans will go anyway, so...
The 50th anniversary guarantees lots of extra free
publicity. Newspapers, magazines, websites and TV shows doing retrospectives. Bookshops doing displays.
The 20th anniversary was a Really Big Deal. ST IV rode it well. And the general public responded.
They would just be rushing to make another movie just so it could be released during a certain year, not because they actually have any kind of real good story to tell.