Allowing them to imp-lament and update your Characters abilities and traits without having to increase the level cap, do to the numbers getting to high and too long to calculate thus slowing the level increase and increasing the lifespan of the game, while making the game more enjoyable. For those that say you will have a set skill tree I have yet to find a game where you needed a set skill tree In order to get into a party, also how are they going to know what you speced for. They can't see your UI...we have rotations that people think are the best already, but I have yet to be told " you need to have this specific rotation or you can't join the party." People simply want you to be able to complete the content they don't care how you do it.