I can't discuss anything about the game as in features, graphics, screenshots, etc... but completely vague generalizations aren't an issue. :D
I was concerned it would be just-another-mmo with TES elements tacked in as well... but this is 100% TES with MMO tacked on. After that it gets hard to get into details, but add ecstatic smiley faces.
*edit*
I didn't apply or register or whatever for beta because from the previews I've read I have no interest in the game. Not because I'm a die hard ES fan thinking an MMO will ruin the franchise, but because it generally doesn't sound like a very interesting MMO.
Funny enough I'm the opposite way. Generally I love playing TES games because of the open world, but no matter how many times I say "I'm going to beat the game this time!" I always wander off and spend my play time exploring and screwing around and completely lose track of or stop caring about the main storyline. This time the story and world have equal pull. Taking something as massive and open as TES and adding a more compelling main story and a huge amount of other players... the effect of that on me makes crack look like candy cigarettes.