[Update]: Sadly, it looks like the culmination of Patch 9.1 storyline is a complete and utter mess.
Patch 9.1 - Chains of Domination arrived last week, bringing with it a much-needed influx of new content. It added Korthia as a new end-game zone to explore, a variety of changes and improvements to the rogue-like Torghast, the beginning of a new story campaign, and naturally, a whole host of new cosmetics and mounts to collect.
While all of that is certainly a nice little addition, today's server resets have brought with it something far more exciting! The Sanctum of Domination raid has opened its doors on both Normal and Heroic difficulty, while the Tazavesh, the Veiled Market megadungeon has added some fun new challenges for even the more casual side of the playerbase.
Perhaps most importantly, at least as far as quality-of-life features are concerned, this week's update has also finally unlocked flying in the classic Shadowlands zones! Best of all, you don't even need to do a ridiculous amount of grinding in order to unlock it like in the previous expansions. Simply go through this week's Covenant storyline as usual and you'll be soaring through the skies in no time.
You can read a little bit more about all of these additions, as well as check out the full patch notes, over at the World of Warcraft website. Have fun, and I'll leave you with the developer-guided overview of Patch 9.1: