How 'bout Secrets of the Storm
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If we do get a revamp, I wonder if that means Uldaz will be under Bael Modan in the Barrens. That's the spot of a Titan ruin with something buried underneath that we know pretty much nothing about.

Looking up that whole questline, I think it's very weird how it's about a "Tear of the Moons" artifact that turns Dwarves into Troggs.
A) Why would an Elune-esque artifact be able to do that
B) It sounds like something they would absolutely revisit if they wanted to tie Dwarves to Elune in some way
Shadows of Azeroth will clearly be a director's cut expansion of BfA and SL combined.

Leak drought, plus two unreliable things that could conceivably work together making people go 'whoa this must be it!!1' because they're desperate for something to show up.
Honestly after having another squiz at ercarp's list, anything with a grain of believability has already been debunked from other avenues such as the HS expansion. I'm not sure the real deal is out there, yet.

Sale of Azeroth.
Gallywix is back after finding a cosmic buyer for the planet, it turns out it's team void.
"no new Races/Alliance Races/Customisation updates, no word right now on more heritage stuff." From the 4chan thing some pages ago.....
This made me lol
Like if they would marketing that they would not do any customisation.... It's one thing all players love and one of the always requested things in any interview
If I like the idea of one does that make me a goon too?
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Dragon Isles is bigger than both BFA zones combined.
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Legion is one of the smallest expansions they made tbh. I think only the Cats zones and Pandaria are smaller.
3 biggest are Northrend, Dragon Idles, and either Draenor or Outland.