They are still very much around, they've been seen online in-game most everyday..."they" being any single member of their Team at any given time. As far as not updating their News items, I guess they don't have anything of value to place there?
I do know that most of the things they Update/change pertaining to the Sites under their belt are posted on their Forums. Perhaps they just have been using those instead of making News Posts. That doesn't explain the lack for mentioning the Halloween Event though....on a normal day, that would've been created immediately when the Event went Live.
Hmmm...