"The magician looked around carefully, finally finding what she was looking for.
Over the gully, supported horizontally by enormous boulders, lay a mighty tree trunk, dark, bare and
turning green with moss. Triss rode closer, wanting to make sure this was, indeed, the Trail and not a tree
accidentally felled in a gale. But she spied a narrow, indistinct pathway disappearing into the woods. She
could not be mistaken - this was definitely the Trail, a path encircling the old castle of Kaer Morhen and
beset with obstacles, where witchers trained to improve their running speeds and controlled breathing."-Blood Of the Elves
So besides Yennefer do you think the trailer might show us a little of Kaer Morhen?