It's becoming clear that they went home to get some sleep.
I don't take issue with that, people need sleep and there is a point where it is actually counterproductive to have tired people keep working.
But given that the last update stated "We are continuing to work on reopening the game worlds..." ... well....
I'll just say I'm glad I was pessimistic and got a full night's sleep. I would hate to be one of the people who were here believing updates like this one and wasted hours refreshing the page.