StarCraft II's next expansion -- which actually isn't an expansion, but a standalone game, Blizzard says -- is all about the Protoss. Blizzard announced StarCraft II: Legacy of the Void years ago, but this is the first time we've really seen it.
Here's the trailer, shown off at Blizzcon today:
Legacy of the Void also include the very cool-sounding Archon Mode, which will let you team up with another player to control a single base and army. Like an Archon. Get it?