Notable changes from other videos/interviews:
Players can be invaded while hollow
Each time the player dies while hollow, their max life goes down a bit until it hits 50%. It can be restored with an item.
Dark Souls 2 Netawork Test footage
Continuation from above video
Notable changes:
Phantoms can use healing items
Phantoms are timed, and you can see an hourglass by their name/health bar.
Phantoms can pick up items (not sure how that works)
You can light bonfires while having phantoms summoned to preserve your progress. You don't have to rest at a bonfire to respawn there.
The game doesn't spam "Phantom could not be summoned" at you.
Smaller changes:
Menu moves off to the side, showing the character on the right
Menu seems a lot more advanced, categorizing weapons, armor, and items to allow more focused searching.
Menu doesn't disappear with consuming souls, so you can mash A to consume a bunch of soul items.
Overall lighting and physics seems improved, including grass and cloth physics. The framerate seemed good from the video.
Here is the stat screen with explanations from a fan
Notable changes:
Seperation of endurance and carry weight
Addition of agility stat affecting "evasion" and other animation speeds