Just had an interesting thought. Ghostlands already has the dark vibe, what if it became some sort of void lands, and Deathlome was destroyed and rebuilt into a new void city .. dunno what the story would be (example of possibilities: 1. maybe the void elves wage a massive war against the void ethereals trying to take the Sunwell and Silvermoon and Ghostlands becomes some void heavy zone - or 2. maybe the alliance launch a campaign to retake Silvermoon, and they occupy up to Ghostlands and it becomes some new warfront type warzone, with the warfront section half in the newly renamed Voidlands and half in the sunny part of Eversong woods, Or 3. maybe it's a peaceful negotiation because of troubles with the void and they return their to help making it their base of operations.
Or
Would you prefer the San'layn become the next Blood elf allied race in the round 2 releases, with Deatholme rebuilt into a massive necropolis as the San'layn relocate from Icecrown citadel (they built from Saronite with scourge slave labour) and returned to Quel'thalas occupying the blighted/scarred side of Ghostlands in a revamp. You can also imagine the story here. Powerful San'layn ruler makes move on Quel'thalas, but renegade San'layn work with blood elves to foil the plan, end up staying in Ghostlands half to manage scourge left overs and any foreseeable trouble 2. Peaceful vision, San'layn fully join the horde, and move into Quel'thalas to help strengthen horde control against fears of alliance attacks.
Which would you prefer?