While I take this point, we
also know there have been rethinks/reshoots along the way, and that aspects of what has been revealed so far have been somewhat in contrast with Stewart's "very rigid rules". At this stage, 4 of the 7 TNG main cast have been confirmed, alongside one former guest actor who appeared three times on TNG as a
very prominant (and, like 7, potentially plot important, given what we know) character, and one cast member from Star Trek: Voyager. Whatever Stewart's original demands, it appears there have been
some compromises along the way.
I'm not suggesting I want fan service, or even if fan service is a particularly good thing. But at this stage, given what has been revealed so far, I honestly don't think we can rule
anything out...