Yeah, mid-shout and mid-reverse grip dual-weild dagger attack. Like how he's got a big beard.
Other things:
Background: It's a new location, some stony fortress-looking area.
Armor: Same leather stuff we've seen, but still cool.
Weapons: The important part, to me. Dual-weild daggers, fine we know about it. Reverse-grip? well that's new. It's also a new dagger type that I agree looks Daedric. Yay.