i'd give a buff to normal mode
with a npc that tags along for some bosses and gives them a debuff, usable for 3 bosses .. that way you can kinda skip some of the bosses that stop you on the way
then again i personaly kinda like the way it is right now, even if i'm currently only at uhm ..some hc ^^ .. blue troll-twins so animus,lei-shenshen and radenlol still left (and personaly the durumur hc acievment^^)