From all the evidence I've seen in my own process and that of others posted, I've learned one thing:
CS (Live Chat, phone, whatever) has NO additional information over and above what you or your dealer can already see.
Anything additional they provide is total 100% made-up-on-the-spot bullsh!t.
Any callback I've ever received has been preceded by a dashboard update with the same material.
Anything they've said to me that wasn't on the dashboard has been proven to be totally incorrect.
I agree with the analysis that says all these systems are feeding off the same batch updates, and Nissan continues to be tight-lipped with any accurate or useful information.
From what I've heard from dealers, they're just as pissed and confused as we are. Some more vocal than others, but all in the dark.
If someone has an "in" at the Port of Long beach, go buy the guys there a beer and see if you can find out more about why the "1500" parked cars are trickling out of there instead of stacked 20 on each truck. There's an answer here nobody knows, but I bet the boots on the dock do.