Here is an article I found regarding answers to various commonly asked questions. In this article, they address the question of healing classes:
http://2p.com/6268492_1/Skyforge-QampA-Part-II-Features-No-Healers-No-Levels-and-More-by-Wow.htm
It sounds very much like Guild wars 2's group dynamics, which I am not against, but I do prefer players fitting pre-determined roles. I agree in a sense with Tristan, in that without group roles clearly defined, i.e. healer/dps/tank, it can feel kinda lonely. That's why AltTabMe is the perfect place to be when this game launches, because we bring a community to a game that has the potential to add a sense of loneliness.