ppl already went nahuj nah its all good, keep going. its always nice to see some ss, no matter from which difficulty btw set you posted sucks for ww barb.
All skills changed a lot, really weird synergy between skills. Exp: Fissure now only synergy with Tornado & Hurricane (in 1.6 it has synergy with other fire skills)... And they don't have to follow anything to reach "later skills", just need to reach that level. Other changed thing is you now can gamble charm and class specific items.