From what ive heard, an upcoming mmo is going to make people basically answer a questioneer about their playstyle (hopefully a psych evaluation as well)what they like doing in an mmo etc. and group them with like minded people. You will still be able to group with friends and quest and do other things even if in different playstyle groups. If implemented correctly this could be one of the best things to happen to mmos in quite awhile. Imagine playing with like minded people and playstyles without having too worry about someone insulting you or judging you for how you play.