If they reveal aliens or anything else, the world will go on same as always within a few weeks or months. The aliens might be eating us or something but we’ll get used to it.
The scenes of being scared by aliens or staring in awe at CGI dinosaurs have been done too many times already.
What’s with the stag and bunny in the trailer, are they the aliens?
Hedonic treadmill or adaptation.
In cities like New York or L.A. no one would even notice a difference.