A word of warning: I would probably not respec my character in Diablo IV at the moment. When I did this recently, I lost all additional skill points I had accrued beyond pure levelling (via map renown and the like). They are just gone. Apparently, I am not the only one with this problem, but Blizzard hasn’t even acknowledged that it exists, as far as I know. It most definitely does, though. And it is extremely annoying. Skill points are pretty important in that game…