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If you haven't seen it yet and are interested in the game go and have a quick look at the Class Panel Video.
Once they get to the Q&A section you will notice a large amount of the questions are the same thing that made me go WTF, they are ditching the Trinity System and instead going with a GW2 like build. Personally I much prefer structured play, I don't have any qualms about multi-class characters or not needing alts but there is no way I am going trough another GW2 or NWO style dungeon run where everyone zergs in, some may like it but not for me.
They say that they have "systems in place" to make sure any group can complete content no matter there make up, all this translates to in my opinion and experience is people who want to play the two support roles "tank & healer" will be snubbed for another dps, because whether you can complete content with a balanced group or not, you can complete it faster with 5 people in full dps mode.
The trinity system has it's flaws granted but I believe it is still superior to the system that they are planning to implement, I still want to try the game, but after hearing the same PR bull from the GW2 team I am more than a little sceptical that this game will cater to it's intended market