I will message one of you as well, but it looks like we still have a while.
"12:50 PM PDT: Sorry about this, all, but we do need to extend today's downtime. During the update, we found that the patch managed to break the backend tool that we use for a wide variety of tasks (such as executing Game Master actions and character management). We're fixing this right now which does push our downtime out another two hours to 3:00 PM PDT."