I found a link (dont know if it is agains the rules to post it) that gives this leaked info based on a betatester information:
-Dragonborn weights 780mb in the xbox version
-278 new objetcs and tons of quests
-Dragonborn is as big as the vanilla game
-No spears, but we can use Rieklings arrows in our bow.
-"Deathbran" armour better than ebony
-Complete Stalhrim armor and weapons set
-The difficult will be way harder than the vanilla game
-Bots to walk in water
-Werebears and quests related to them, not confirmed if we can transform into one.

Te page advise that this info may not be 100% real. In my opinion it sounds too good to be real. But if this post suddenly dissapear we will have a clue.

Considering that any beta tester stupid enough to leak info after signing an NDA (Which was a requirement of the beta) would be opening themselves up to a lot of legal hurt, I'd say that the chances of this being real is pretty damn slim.

In any case, big clue against it being real? Only 780mb, but as big as the main game which took several years to make?

Link please?

Spears are confirmed and Werebears are a myth, just listen to Mai'iq. I call bullshoot on this sir, especially as no source is provided.

We already know those things, but thanks for rementioning!

Saying Dragonborn is as big as vanilla Skyrim yet is only 780mb seems fishy.