Wow at that wild life and the wilderness area and cave... I don't want to overreact too much because you could make a video like that, I suppose, for a lot of MMO or open world RPGs... but at least in a traditional FF, looks just awesome and is great to see. I mean, open world free-roaming chocobos? With those feathers, that down? That's like an automatic plus ten points to greatness.
Voice acting made me cringe a bit but I'm not a fan of the character art style anyhow so I'm probably a bit predisposed to be biased, so I'll be OK with whatever.
Can't get enough of those behemoths... I've always been a bit of a 'Behemoth Hunter' every since FF2. I just always grind the fuck out of them, by far my favorite RPG monster. Used to joke about getting a behemoth mount in FF XI all the time (everyone thought that was so dumb) and love the behemoth mount in FF XIV (haha knew one day I'd get one) so that's like the #1 thing I'm looking foward to doing in XIV so far -- hunting behemoths.
Hope the game has some free roam or even non-linear gameplay systems... even if it's mundane, repetitive, copy/paste... like some sort of Tactics Ogre Hells Gate/FFT Deep Dungeon... FFXII Hunts... anything. Just give us a lot of extra shit to do once we beat the game so we can further utilize those big environment areas.