Or the Phase II Enterprise showing up on displays in TMP and TWOK, Franz Joseph's Constitution in TSFS, the various graphics in TOS showing configurations not precisely matching any iteration of either filming model, or any number of other similar situations throughout Trek.Likely no more than when the Star Trek Beyond bridge graphics (and first trailer) all featured the ST'09/ID Enterprise and not the updated version with swept-back nacelles and a thinner neck. They just hasn't finalized the design yet.
I completely agree that's the likelihood.
Of course, alternatively, this could be the Enterprise as she looked when Pike began his 5-year mission, before his crew had to make ad hoc repairs and improvements along the way, or as she will look when next (or later) seen after system-wide refitting(s)! For all we know, the VFX team made their initial changes from Eaves' concept specifically to the end that we would be able to observe her change into this more TOS-ish form in the course of the show as it goes on, foreshadowing her future, just as Eaves intended (and just as the Defiant wireframe was modified to suggest she had been reverse-engineered by the Terrans over the course of the century since she was last seen in ENT). Only time may tell.
-MMoM
