I have a few questions regarding Dawnguard.

• I am already a Ware wolf from completing the "Companions" quest line. How will this affect the story/quests that Dawnguard has to offer?
  
• What new weapons will there be?
  
• Will there be any new Armour?
  
• Will there be different types of Crossbows (like Ebony, glass etc)?
  
• Will Danwguard raise the level cap? and if so by how much will it be raised?

http://www.uesp.net/wiki/Skyrim:Dawnguard. Apart the first question, yes, yes, and yes!

http://img.elderscrolls.net/dawn-screens/isranfight.jpg screen may even hint to one ore more spells.

1) Unknown, though they'll have taken that into account. You may see a slightly different quest set up than if you weren't a werewolf.

2) + 3) + 4) There's a few screenshots availiable, though other than crossbows and dragon bone weapons I've seen no other details.

5)The level cap is a result of the skill system. All skills at 100 = level 81 (and a bit). The only way to raise the level cap is to raise the skill cap threshold (Pointless since the skills are balanced for 100) or add more skills, (Which they seemingly aren't. New perk trees are advanced by doing stuff rather than levelling)

AS to werewolf, If being a werewolf would exclude you from being in Dawnguard, I think Beth would have told us by now

There will be crossbows of course, as well as Dragonbone weapons, I think Silver and bithril play a part, but I am not sure.

Dawnguard armour of course, and probably a few others. There seemed to be one heavily armoured "Knight type with an ax" A couple varients of dawnguard armour, and I think Harkons armour is new. Capes are rumored but not confirmed.

Different types of crossbows. Steel and Dwarven have already been confirmed.

Considering Dawnguard adds vampire lords and werewolves skill tree, I should think the level cap would be raised.

A rasied level cap would be good to let us use Dawn Guard perks. I have one last question, when is it going to be released?

if all goes well, June 26 for 1600 Microsoft Points

The new perk trees are -apparently- aquirred via actions (Feeding, killing etc) so the cap won't need raising.

June 26th? O_O NICE! I just hope it isn't delayed, I was led to believe it was a September release by many news websites >

More likely the time for a second entry if not later on.

Thats for xbox. If you're on any other platform you will have to wait another month.