I think there's no real point in fussing over 'scripted' gameplay, because frankly KH3 shows that this trailer is likely to be extremely indicative of the final thing. It's more likely they rigged it for the trailer's flow than it is that they rigged it because there's no actual gameplay yet lol
Great, cannot take anymore "NORT'd LOL" tweests/characters.
Too bad I have not touched any of the mobile/browser stuff, gonna wing it as far as plot goes.
Cautiously, I would honestly say you will lose or gain nothing from winging it because they're doing a great job integrating it back to the console games:
I said this earlier in the thread too, but honestly KH3 (and so far KH4 based on Strelitzia's portrayal) seems to basically assume that you don't know the mobile stuff (outside of Back Cover/The Foretellers, which obviously got the movie) as all the mobile stuff in both so far have been pseudo-introductions on their own anyways. The important stuff was shown in KH3 as if it was new (The black box, why it was important, etc).
I mean that in that it doesn't really matter if you know who the characters are already from playing Union Cross, because the game is still treating them as a mystery
to Sora and friends. The journal even calls Ephemer "?" and you knowing or not knowing who he is doesn't affect KH3's story or your grasp on it.
People overblow how much you need to know about UX and its kin to understand what's going on with KH3 and onwards because "if you didnt play the mobile game you wouldn't know who this is" but... knowing who they are is the only reason they think that, you lose nothing by not knowing. It still flows the same and hits the same beats.