Chris Pine is 45. Bill Shatner was 47 in ST: The Motion Picture.

We are now at a point where we have the opportunity to remake TMP, with modern writing and effects, let Kelvin Trek escape the clutches of JJ’s hacky writing, and become the perfect reincarnation of thinking and action Star Trek.

Because V’ger is out there, trying to report back to the creator.
Kirk has accepted admirality, of course. Spock is seeking Kolinahr with the surviving Vulcans. Scotty has perfected the replicator. Uhura is teaching at the Academy and pulled back to active duty to communicate with the entity. Sulu is captaining the Enterprise. Everyone remembers Chekov. McCoy has a massive beard and is doing medicine on New Vulcan with Spock, much to the chagrin of the Vulcans.
We roll TMP and WOK together, ignoring the aggressive way Kirk rolled over Decker. Decker is still XO, but he’s more than happy to butt heads with Kirk.