Part 2 of NWVault's E3 NWN2 preview is up! This covers exciting things like armor customization, prestige classes, betas and expansions as well as other exciting features and some more toolset movies!
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EDIT:
Character Creation
For character creation, there are quite a few heads to choose from plus you can now control the color of the hair, eyes, and skin. There are also controls to add facial hair like beards and choose accessories like hairpins, flowers and eye patches. However they are still working on giving some control to the body types of which there is just one per race/sex combination. The controls will allow you to adjust the body type in both height and width but it won't be a lot, something like 20%. So you can't have any very fat or skinny player characters. Tattoos are still being worked on so Josh wasn't able to give any details on how that would work.
MORE EDIT: (Very interesting stuff!)
Prestige Classes
For those of you seeking Prestige class info, there won't be an archmage or shifter prestige class in the game. The shifter class was part of the original design doc for a long time but when it came around to addressing the shifter class, there wasn't enough time to prepare a list of creatures. Other prestige classes that are confirmed to be included are all those available in the original NWN expansions as well as Duelist, Warlock, Neverwinter Nine (Warder, Magist, Agent), Divine Champion, and Arcane Trickster based on an interview done by ALFA with Obsidian CEO Feargus Urquhart.
Scripting
One of the big changes in the game is that you will be able to assign scripts to player characters as well as virtually any object in the game. Plus you can change those scripts dynamically at any time. This should really open up a lot of possibilities that wasn't available in the first game.