Honestly it’s unacceptable that they’d even wait that long to make an announcement or status update, even if it is Blizzcon. They already announced that they were working on ladder and profiles months ago, so they should not be waiting to do another status update or PTR patch just to have it coincide with Blizzcon. Now if there really isn’t anything to tell us yet because the development team got scrapped then that’s different, but that would mean more waiting.
Either it’s a bad sign, there won’t be much to announce other than continued plans, or they are really trying to keep it under wraps for a surprise announcement.