For those that have yet to see it, here is the Benchmark Trailer.

0:11 to 1:20 shows off some of the Dark Knights skill animations in a frozen dungeon.
~6:50 shows off a new Paladin Attack
~6:55 shows off a new Warrior Attack
~7:20 sows off a new Paladin Defensive action that seems to block Line of Sight during AoEs.