>As a feature of the 3.5 update, there are more levels, however, they are not the tradtional ones. They are levels that only are leveled within doing quests and killing mobs in those two zones. Much like how Abyssal Skills are leveled, you must get (although prome to be changed in our version) Honorforged Medals to increase your rank to the next level. Progressively, the amount of XP gets lower but the amount of items you need gets higer. You will start at level one again, but have a different icon:
>Skills (actives and passives?) now have many variations of them. Not sure how these are activated. They have different attributes (like water, "ghost", fire etc) that changes effect depending on what the attribute is.
>XP needed to level from 50-55 has been decreased by 30%, however we've already had an XP requirement decrease in the past so I don't see this taking effect.