Twilight Archon has shown up on blizzard's SC2 site

"Every protoss has a level of psionic capability that is extremely rare among terrans. The protoss of the Templar caste devote their long lives to honing their powerful abilities for war. Of these dedicated individuals, only the most adept and disciplined in the ways of the Khala can hope to eventually rise to the honored rank of high templar. The terrifying power of the high templar is rightly feared by the enemies of the protoss. A mere handful of these potent individuals can lay waste to entire armies of foes. "