What’s of interest here is that all the guys in suits are staring straight ahead and they all have a glassy-eyed look, like they’re not actually looking at anything.
We then get some flickering lights and a shot of what could be a security team looking at banks of monitors.
Also, Elastigirl appears to be shielding her eyes in the back of the shot, possibly trying to avoid being affected by whatever is happening.
The last few seconds of the new trailer introduces the Screenslaver as he interrupts a television program to announce, I’m assuming, whatever his evil plan will be in the movie.