Monnor

What is your opinion on the holy trinity in MMO's (Tank, DPS, Healer) and ArenaNet's attempt to break free of it with Guild Wars 2?

Currently getting my degree in Interactive Media & Game Design so feel free to take this answer with a grain of salt. Game developers will often advertise the finished product and it's features before it is actually finished (marketing). So, even though a feature or two might not be in the game when it is finally released, you end up gaining more players from the advertising than you lose because of the missing feature.