This only affects commodities (stackable items). Anything else listed will stay within the system over the maintenance period and will still be there at the end. But, yes, if you don’t sell your stackable items by the day of the content update (a few hours before maintenance) you’ll get the items back but not your deposit. Yep. We wanted to provide a heads up so that everyone was aware and plan accordingly.
Ahh… but you have to stop the corruption there or it will just spread. 
We don’t have a cave, but it would be cool if we did. 
We’re in the process of updating comments on our blogs, which (when finished) will automatically create forum discussion threads for those posts for us. Until then, I’m here taking care of those manually. That said, as we did on blog comments on the front page, I’ll be around to try to answer questions and engage in our published content, which is what I handle these days. It isn’t a snub if I don’t appear as much after that transition. 
The Old God N’Zoth has been unleashed from his titanwrought prison, and an ancient corruption has taken root across Azeroth, turning friends into foes and trapping warriors’ minds in nightmare visions of a hopeless future. As despair and madness consume the land, the heroes of the Horde and the Alliance will need to fight for their sanity—and the fate of their wounded world in this content update.
Learn more in our survival guide and content round-up blog here.
It should be there now. We were in a brief temporal anomaly, but I think we’re clear again.
The official update notes for the January 14, 2019 content update to Visions of N’Zoth are here.
Read the complete notes here.
2020-01-07T22:00:00Z
Delve into where nightmares dwell in Ny’alotha, the Waking City, set in the Void-shrouded heart of the ancient Black Empire. Confront mad heralds and inscrutable horrors, and ultimately go eye-to-eyes with N’Zoth himself in a fateful battle for Azeroth’s survival.
Read the complete preview here.
You saw nothing. 
The restless spirits of pandaren and Allied Races can return to the mortal plane as Death Knights in the upcoming Visions of N’Zoth content update.
Read the complete preview here.
Just as an fyi, we made a correction. We deleted a typo that incorrectly stated that pandaren can receive Heritage Armor by leveling to 110.* Apologies for the confusion.
Take your buying and selling to a new level with Azeroth’s updated Auction House!
Read the full preview here.
Did you see her do the live voice acting for BlizzCon 2019? I got goosebumps from watching it. She was spectacular (as they all were.)
Face N’Zoth equipped with a powerful new legendary cloak and gear tainted with Corruption.
Read the complete preview here.
We’ve been fighting a few technical issues today. We’re getting there though. Phew… Thanks for hanging in everyone!
As despair and madness consume the land, the heroes of the Horde and the Alliance will need to fight for their sanity—and the fate of their wounded world. Delve further into the future that the Old God N’Zoth envisions for Azeroth and gird your mind against his maddening Assaults and Horrific Visions.
Read the complete preview here.