The official account for Netflix‘s “Stranger Things” over on YouTube is teasing a special little *something* for tomorrow, uploading a mysterious video with a cryptic caption.

The video’s description reads, “Due to technical difficulties, Hawkins National Laboratory will be closed until further notice. We will be back in service tomorrow at 9:00AM ET.”

As for the video itself, it’s a shot of several monitor screens in the Hawkins National Laboratory, which occasionally flicker on and display teaser images for the fourth season.

What can we expect tomorrow? Release date? Trailer? Your guess is as good as ours…

What we know of Season 4 thus far is that Hopper is still alive, “imprisoned far from home in the snowy wasteland of Kamchatka, where he will face dangers both human…and other.”

“Meanwhile, back in the states, a new horror is beginning to surface, something long buried, something that connects everything….”

“Season 4 is shaping up to be the biggest and most frightening season yet, and we cannot wait for everyone to see more,” the Duffer Brothers had said back in February of last year.

The season’s cast includes Robert Englund, who will play Victor Creel, a disturbed man who is imprisoned in a psychiatric hospital for a gruesome murder in the 1950s.