There is a concept of Good and Evil classes on the majority of MMORPG's and MMO's in general.
What if.... If you were able to choose a side, that side provides you with a Good or Evil Class shop. Which is pretty standard to any means. Providing you with Quests of Heroic or Demonic values. Pretty simple eh? Choose a side, get a class shop, get rewards from quests.
Here's the catch. If you were able to choose a side, there is a major penalty. #1 the classes will be divided forever and you will not be able use the "good" sets of class's again on your device. Basically a device lock for that side you choose. Yes I know you can buy another device and select the other side. But.. if you do it will erase the data on your other device. Basically you stick the side your on forever. Trust me, "they" will know.
#2 The side you choose will decide your fate of your clan. If someone of a good side creates a clan, it can be only used for the side of good and vice versa.
#3 War is prominent. There is no way to avoid it, but it will establish the true dominant clan.
#4 A low lvl that choose a side will be able to join that clan, and be able to be in a clan a very early stage in there Celtic Heroes Life. Establishing that they will get all the necessary clan drops.
And Finally #5, the most important penalty. If you choose a side, certain mobs will behave different towards you. If evil and a certain mob has chaos/evil morality it will succumb to your will, making lvling much easier. However, if it the a good/pure mob it will have a instant rage towards you at all times.
So the questions are.
A. would you petition this to be the new design pattern of the game.
B. If yes, which side would you be on? And list why you would have choose that side.

Enjoy.
~kilp