But there's a theory (my theory) that points to Wo W's other feature at the show being a bit of a hint.
Every possible meme about Jaina, naga, and artifact weapons has been explored and it's growing by about a page every five minutes.
We're unlikely to see anything else on this front until Friday, when the expansion is expected to be revealed at the close of the opening ceremony.
Long time Blizzard tie-in author Christie Golden is writing a new World of Warcraft novel, and it's due out in May next year.
Alexstrasza and Chromie have both been doing not a whole lot since Cataclysm, and Northrend's been mostly abandoned since before that too. In case you haven't been keeping up, Blizzard are trying something new for Blizz Con 2017 - a pre-show of sorts, with new videos every week in the lead up to the main event.
All of that combined would suggest we'll be seeing a lot more of those characters, centered around the mess in Silithus coming with patch 7.3.2. They come in various series, one of which is a year in review.