Privateer Press have posted a preview of the stat cards for the Warmchine Cryx Warwitch Siren.
From their announcement:
For centuries the Orgoth tyrants used their warwitches as living implements of atrocity and mass destruction. Now, hundreds of years later, the Cryxian warwitches have become icy killers, as cold in spirit as the shadows in which they are clad. Their arcane powers have been refined over time, and the witches called sirens have learned ways to seduce their enemies into annihilation.