I've already seen this slice of Assassin's Creed IV: Black Flag in action. Now you can, too.
I'm extra-wary of the new game after feeling so disappointed with Assassin's Creed III. And I'll only really feel more confident once I've had a chance to actually play the thing. But I'm guessing you'll agree that this demo is awfully impressive.
Furthermore, I've been playing Assassin's Creed: Revelations to completion for the first time, and am increasingly of the opinion that that game didn't get a fair shake. It's pretty damned good! The fact that many members of the Revelations team—including ultra-talented art director Raphael Lacoste and writer Darby McDevitt—have been working on Black Flag bodes well.
But hey, enough from me. Check out the demo and judge for yourself.