I highly doubt they’d drop a patch with less than a week’s notice. And we’d at the very least need the obligatory five weeks of Turbulent Timeways thereafter.
They’re trying really hard to keep it a secret.
It’s very natural for WoW stuff to be leaked or datamined ahead of time, basically been that way for years.
They’re trying the SoD approach of keeping everything tightly wrapped until the day the patch launches, I guess.
Trying to preserve that sense of wonder that used to be, before dataminers spoil it for the majority of people that use WoWhead.
Patch is due any day/week now, perhaps next week or mid-March.
It wouldn’t be the first time. Heck, it wouldn’t even be the second time they’ve given less than a week’s notice for a patch.
Besides, if they’re going to, they could still give notice today, as the workday isn’t over.