Ohmigosh there's an actual bad guy and he's doing scary thinnngs!
I'm prepared to call out some disappointments, though. First of all, it's weird, but I find it kinda' sad that it's a bad guy instead of a bad lady - which is a weird thing to be troubled by, but it's an... irritant. Second, I'll be very sad if the giant robo-spider-thing we see towards the end is the actual climax of the game. What's most interesting to me, in Aloy's world, is Aloy herself and the ancient mysteries she's discovering - I'm hoping her challenges and successes are equally personal to her as they are meaningful for her world.
That being said, overall, this trailer is Sofa King awesome.