You should do alright in higher difficulties if you do well with kiting. With decent gear your life pool should be up to scratch and you would have a good amount of evasion, so you wouldn't be hit often(but if you do get it... it won't be pretty). One thing I see people do to get reduce the damage they take is getting a flame totem and linking it with GMP, Knockback, and Blind. It looks like it works wonders for shoving people off of you.
They didn't get rid of the huge bow cluster, they just swapped its place with lethality, kinda. Lethality now sits where it previously was and the big bow cluster is to the right of the Ranger's frenzy charge.
As for what's good about frenzy charges: more attack speed. Every frenzy charge you have gives you 5% increased attack speed.
Also, the offline skill tree is correctly updated now, with working icons!
Here.EDIT: A new master has been revealed:
Tora, Master of the Hunt.She does bow crafting, her hideout tileset is like the Riverways, and her missions involve hunting beasts.
Also, the Beyond league has been announced as well!
Apparently, when you kill a bunch of monsters close to each other, a portal begins to form that summons extradimensional demons. As you kill more monsters by the portal, the portal gets larger and large, increasing the spawn rate and the difficulty of the monsters within. If it gets big enough, it summons a unique boss, it looks like. Sounds fun!