Runic Games has begun teasing info on Torchlight II on the official site. The site states: "Beginning today, and every other week until E3, we're pulling back the curtain just a little bit to tease you with glimpses of Torchlight II! So fire up the rumor mill, because we're about to let slip the first behind-the-scenes look at what you'll be seeing in Torchlight II - starting with the monsters you will to learn to fear!"
One sampler on the page:The Witch
Long ago, in the fetid Blightbogs, a cult of demon-worshipping primitives made a dark pact with the diabolical Netherim, gaining power undreamed of with which to inflict cruel suffering on their enemies. They sacrificed anyone and everyone to power their foul rites, including, ultimately, their own humanity. And now, with souls forever blackened by corruption, Witches are horror personified. As their bodies succumb to the taint of their evil, they build makeshift limbs to animate. And when their hands are no longer up to the task, they fashion malevolent little puppets to do their awful bidding.
You can check out more from the official site.