Blizzard has released a new video for Starcraft II: Heart of the Swarm, which the publisher calls "Bonus Footage". The video shows off many of the new features and systems coming in the next chapter of the popular real-time strategy game, including a few shots of the new single-player campaign.
StarCraft II: Heart of the Swarm is due to be released on the 12th March 12, 2013.
