Privateer Press has posted up a preview of their upcoming Mage Hunter Infiltrators.
From the website:
Mage hunter infiltrators specialize in hunting and killing enemy arcanists. At home in any environment, they take advantage of their surroundings to close on their target in silence, their blades slicing through arcane wards with practiced ease. From out of the darkness they strike, quickly and efficiently dispatching those whose very existence threatens Scyrah.