I loved exploring in Morrowind, and even though I've put hundreds of hours into that game, I'm ashamed to say I never did actually get more than halfway through the storyline, lol. So even though the storyline isn't the most important part of an Elder Scrolls game, it's still always really nice to know that you're existing in the game for a reason, and have a great and epic journey ahead of you, etc.

Most important of all though are two parts of the trailer... One where a mage does an awesome looking fire attack (magic has just never seemed all that powerful to me in those games, though I suppose it can be if you make your own spells and abuse the system) and when it showed the one cliff looking thing... The environment for this one is going to be epic!