Okay first my ideas are ones you may not like and I mean no offense.

Okay my first idea is to have fractions let's say there are two major fractions one based of light and the other darkness there are also sub fractions each of the main fraction has two sub ones. There is also a outcast group for people who do not want to join a fraction. Okay so each fraction has their three or four classes the classes are kinda similar but also different so this is where my idea for elements and elemental weapons come in. Each fraction has their own element(except for the outcasts they can be anything) so I'm not so sure for what the elements should be but let me give an example the people that have the element of fire are stronger against grass and weak against water so if you were to be attacked by a water elemental you would take more damage but if you were to get attacked by a grass elemental you would take less damage. So well my last idea for this post is to have the ability to betray your fraction and join another and keep your elements and weapons and stuff but here's the thing that players that are in the fraction you betray can see a red x or some kind of symbol to show that you betrayed them and if you can arrest them or kill them you can get money. So that's part one part two is coming soon and I my edit part one in part two. So any ideas you have for this reply I guess