Kirk's Enterprise escorts the prototype XTP-147 on one of its shakedown cruises. This design represents a possible upgrade to the Constitution Class as a whole; a preliminary refit configuration which, pending review and modification, will be implemented class-wide within a few years.
Kirk: You gotta admit, she's not half bad looking. You got another reason for being so enthusiastic Mr. Scott?
Scotty: Aye! Th' tests go well, maybe we see th' Enterprise herself re-fitted thatta way while we still got her!
Kirk: Hmm...that's a thought I like! More motivations then for us to keep doing the impossible.
I hope I got Scotty's scottish-talk right.