It might be at least another two years out, but Blizzard’s started teasing the second StarCraft II expansion Heart of the Swarm.
Six pieces of concept art for the expansion, the second of the three parts of the StarCraft II story-arc, were shown off during a panel at Blizzcon.
Get them at IGN.
It was revealed earlier that Heart of the Swarm wouldn’t be out until after 2011.
Zerg-based Heart of the Swarm is the second part of the StarCraft II story arc following the release in July of Terran-based Wings of Liberty. The third chapter, Legacy of the Void will focus on the Protoss.