I would love to see an optional faction war where you have two or more faction and a player can affiliate with one. The players are always at war with each other and can pk without any punishment players from other factions. Being with a certain faction can come with benefits like getting some "honor" with a faction and them having a special honor shop so you can buy items and also having daily quests to kill X amount of players from other factions. There could be even more stuff with that like certain factions controlling mob areas and if your faction controls it, you get bonus xp/droprate there but you can always fight over it with other factions. Just some rough ideas but i'd love to have something like this as it would allow more for the pvx playstyle this game offers and i like so much about it.