

Midnight speculation:
Delves: new follower is Valerra Windrunner
First Raid: Sunwell
Player Hub: Silvermoon with Alliance and Horde sections like Dalaran
Story: Xala'tath is powering up the Dark Heart. To do so, she needs to drain the sunwell. Players must stop her! Do we get there in time? Or do we just slow her down? We need to chase her across Azeroth's titan constructs. The race is on to stop her before she reaches the Chamber of Heart!
Lor'thremar is missing. Thalyssra is busy with Suramar. She Assigns Arator as a neutral leader so the Alliance and Horde can work together to stop the void invasion.
Mechanics:
level to 90
Flight earned as end of campaign reward
New class/race? Haha no.
Player housing
Communities
Town hall
New dungeons
Revamped quel'thalas

Maybe Lorethemar doesn't die, Turalyon does. This sets off Arator and Alleria. Paladins seem they will be prominent (YES!) in Midnight.
I saw someone speculate maybe Silvermoon gets split between light and void, basically an ongoing battle the entire expansion. I liked that idea. Would be a parallel to Alleria being void and Arator being light, each harnessing the powers of their "side" to fight Xal'atath.
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