Blizzard Entertainment continues to develop the single player for StarCraft II: Heart of the Swarm. Seems the Zerg campaign lore and dialogues have been ironed out. These past month they have been recording voice over as revealed by actress Tricia Helfer via Twitter.

A few weeks ago (Jan 19th), Tricia commented she voiced Kerrigan during a couple of sessions at the studios. Today she reports she canceled her StarCraft II: Heart of the Swarm voice acting session due to a possible flu she must take care of.

At this rate, we might be seeing a single-player press event at some point, followed by beta testing. Ain’t you excited about Heart of the Swarm?

      Tricia: “Was suppose to voice some #Starcraft 2day, but had to cancel. Kerrigan can’t sound like she has a cold! #fb”