Oh, hell yes! That trailer was amazing. The music was wonderful as well.
The shots we saw of the battle of King's Landing looked great, I was afraid they were gonna skip over the whole thing. And the scene where Joffrey orders Sansa to be humiliated and have her dress torn was in there as well, which means we'll get to see Tyrion slap around his worthless ass once more.
The men that stood before Daenerys with the bronze shields in their hands, are those supposed to be the Unsullied? Because those didn't show up until A Storm of Swords, but it might be that they changed things around in the show a bit.
And yes, that shot of the Night's Watch walking across the ice was beautiful.
By the way, have there been any info on who's playing Qhorin Halfhand?