I was wondering, now with Dawnguard they changed the werewolves, are there any perks that helps it from your human form or is it all based on the werewolf perks now? Can I somehow boost my werewolf depending on my human form?

Light foot and Silence from the Sneak tree carry over, Mage armor and Magic resistance from the Alteration tree carry over other then that there isn't any others that carry over. The Light armor skill tree USED to effect you werewolf but it was changed with one of the patches, BUT all spells carry over if cast before changing so armor spells like Dragons hide will aid your werewolf, cloak spells are another useful spell for werewolves. Potions and food will carry over when consumed before changing as well, some racial abilities like Beserker rage will carry over as well when cast before changing.
Mess around and find out what carries over and what fits your build/play style and become used to having to use hunting tactics as a werewolf and you will become the true monster that werewolves are.

Happy hunting

Aha, thanks! I wasn't sure if I should prepapre my human form for the werewolf form, but I can just go on as I please then, with a werewolf mod that enhances it a slight bit. Hircine is with me.

I would at the very least perk into the sneak tree, Light foot is gained at sneak level 30 or 40 and Silence is unlocked at sneak level 70. Both of these really help your werewolf, it allows you to get the jump on your target before they hear you (as long as you stay out of their line of sight ). If you wanted a werewolf that's 70-80% resistant to magic then you want to perk into the Alteration tree for the magic resistance perks then combine it with the Lord stone or the Atronach stone. Speaking of birth sign stones there's 3 of them that benefit werewolves the most, they are... Lord stone, Atronach stone and the Lady stone either one of these helps your werewolf