Lol at that Ally focus and phantom pains over BE. You have your High elves, Void Elves is to you.I'm a bit out of the loop after BlizzCon.
But Midnight should feature (assuming the area around Quel'thalas is revamped):
- Main hub: Silvermoon revamped as a neutral city with different wings for different kinds of Quel'dorei, as well as Horde and Alliance. Sort of like embassies. Early on it might be a hostile city like Suramar, but then we push the enemy back to Quel'danas over the course of the campaign. I think it's fine if the Horde loses exclusivity on Silvermoon, because that's essentially what the Night Elves are going through with Amirdrassil and its surrounding areas.
- Endgame raid zone: Quel'danas revamped with a re-purposed Sunwell raid, featuring Queen Azshara or whomever ends up being in charge. Perhaps a ceaseless battle between forces of the Light and the Shadow for control over the Sunwell?
- Zone revamp: The Ghostlands and Eversong Woods are revamped and combined into one zone (Eversong Forest), essentially the heart of Quel'thalas. Some parts retain the yellow/orange/red hues from TBC, while other areas are more green and lush like in Warcraft 3. Probably pockets of undead remaining, like some rogue Necromancer working from a cave or something. Also forest troll incursions. Windrunner Spire and all that stuff will be found here.
- Zone revamp: The areas west and south of the Ghostlands are revamped, i.e. "Northeron" and both of the Plaguelands. New Stratholme. A harbour for elven and human ships in the west. The Silver Hand church is updated as a place where Tyr and players devoted to the Light are active. This zone should represent half-elves, and the elves' relationship with humans and other races (trade, culture, etc).
- New zone: Zul'Aman becomes an entire new zone to the east, full of lush forests as well as temples and such. Some of them are hostile, while others might end up joining the Horde. From their point of view, Silvermoon needs to look a bit like this large, oppressive city on the horizon, towering over their ancient forests. We as players need to get a feeling for why Quel'thalas seemed like such a threat to their existence.
- New zone: I think the expansion would need at least one more new zone, so it doesn't just feel like a rehash of old content. I'm not sure where they'd place it unless they're ready to drastically expand this peninsula, but maybe it could be some type of archipelago, large island, or even and underwater zone to the northeast of Quel'thalas. This could be a naga stronghold, and perhaps feature some vast brilliant and ancient Quel'dorei harbour from whence their war ships in the Second War would sail. Sea elves confirmed.
- New Allied Race: Quel'dorei, neutral. Essentially High Elves, full of cool features such as ranger tattos and runes, cool hairstyles, headbands, unique quivers, etc. It would make sense if Blizzard found a way to unify all current playable Quel'dorei races under this race, and then you simply customised it. But I don't think that's technically feasible at this point. So instead, both factions will probably gain access to a sort of "pure" High Elf race, untained by Fel, Void, Light, Death, or whatever else. If they're not doing an Allied Race, then a lot of new customisation options for Void Elves and Blood Elves would be the least they could do.
- Visual theme: The expansion obviously can't be set at night all of the time, because players moan enough as it is when they have to endure a few hours of darkness in the current system. So I think either a certain region will be covered in darkness, or perhaps it'll shift between Light and Dark like an extreme version of Hallowfall in War Within. Or maybe, it'll be dark but with a twist, sort of beautiful and voidy. Like how they're able to make the underground seem tolerable in War Within.
- Antagonists: Guessing the Harbinger of the Void will have filled its purpose at this point, so Queen Azshara and her naga make a lot of sense, on top of a bunch of creatures from the Void, and some who swapped sides. Maybe there's some Void Lord or whatever being summoned in the Sunwell. It's interesting to consider that the Old Gods' prophecy for conquering the world is called The Hour of Twilight, which is before nightfall if you think about it. So this needs to feel like a world in which they won, or are on the cusp of doing so.
And lol on neutral Silvermoon (never gonna happen, only after Stormwind neutral)
Will look how Amirdrassil will be neutral (never gonna happen, NE fans are too loud)