I was just thinking about Chrono Cross and other Role Playing games. In all of them there is some huge villain that you are after. I think it would be cool to have a powerful villain in some kind of fortress. One day, once all of the major development is done, you could have an army go to defeat him. This would make PS a VERY unique game. To actually have a story that a player can participate in. Most MMORPGs just have small quests for individual people. If you had a real story. That would be amazing. As for the army. You could have people sign up to be in an army, but they could only join if they were at or above a certain level. This idea would have to have a lot of fine tuning. I am sorry for how sloppily it is written, but I do not have much time.
