Ok, even more hyped now! 
Congrats, Iām truly happy for you.
That short animation didnāt do anything for me besides worry that DF lore will be worse than SL. 80% of that trailer was about something I already knew from questing in dragonblight and Galakrond and all that good jazz. But then Nozdormu added āancient enemy has returnedā which is not only my least favorite phrase but also tells me Galakrond Version 2.0 is coming in terms of lore. But Galakrond was never a boss ingame so it is fine if we get to punch him in the face as long as the encounter isnāt like spine of deathwing.
Nozdormu also said āmy story is already written, but yours and that of all Dracthyr, is only beginningā which tells me in best case scenario the Dracthyr factions will be asked to fight Galakrond 2.0, in the worse case scenario after Dracthyrs beat Galakrond 2.0, they will have their own new Aspects.
So, trailer was 80% meh, 20% Oh God please no!
Another ancient unknown enemy rises, and we get solid confirmation that the dracthyr really do look terrible.