For myself, I'm not terribly worried. As long as it's fun, and has a deep, compelling story and world, I will play. That being said, from a global trends perspective, it has proven quite dangerous to borrow too heavily from other MMOs. There's a fine line between using a foundation to support your game, and using crutches.

I've been seeing a lot of echos from other MMOs recently in the new information we've seen from the dev team. The FATE system sounds awesome; it also sounds a lot like the system in GW2. We'll have to wait and see if they tiptoe the line well or jump right over it, I just hope Yoshi-P knows how precarious of a game he is playing.