Wings of Liberty story:
Set in the 26th century in a distant part of the Milky Way galaxy, the game is built around three species: the Terrans, human exiles from Earth; the Zerg, a race of insectoid genetic assimilators; and the Protoss, a species with vast psionic power. Wings of Liberty specifically focuses on the Terrans, while the expansions Heart of the Swarm and Legacy of the Void focus on the Zerg and Protoss, respectively. The game is set four years after the events of StarCraft: Brood War, and follows the exploits of Jim Raynor as he leads an insurgent group against the autocratic Terran Dominion. However, unable to inflict major damage against the Dominion, Raynor's forces are relegated to the roles of mercenaries, recovering artifacts of an ancient species thought extinct, the Xel'Naga, for their enigmatic employers. The game reunites old characters from the original game, as well as introducing new characters and locations to the franchise.
Currently in Beta testing, and is planned for a release later this year. There is no official date as of this moment. The plan for the release, is that there will be 3 different copies. The first one to be released is Wings of Liberty, which is the Terran campaign. The Zerg and Protoss copies will be sold later on. Remember the project Starcraft Ghost project that was scrapped a few years back. It has been over 10 years since Brood War was released, and this will finally give players of the original Starcraft game some news.