http://www.youtube.com/watch?v=-S7HdPeASJsendofvid
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StarCraft II: Legacy of the Void is a planned stand alone expansion pack to the military science-fiction real-time strategy game StarCraft II: Wings of Liberty, and the third part of the StarCraft II trilogy developed by Blizzard Entertainment.
The expansion will include additional units and multiplayer changes from Wings of Liberty, as well as a continuing campaign focusing on the Protoss species. It will span approximately 20 missions and will be priced as an expansion set. The campaign will focus on Artanis as its main character. Blizzard plans to release a beta version of the expansion in the first half of 2015.
The single player campaign will contain elements of diplomacy. The player will work with different Protoss tribes which will help them gain allies and advance the plot, but at the same time making them enemies with other tribes. Using units from one side may preclude using units from the other side, and alienating one or another sect may cut the player off from part of the campaign.
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