Wpvp it's one of the most important things in the open world but some people just wants to be a bandit and not a hero, please let us choose a third faction flag "in a NPC" for Wpvp, if we are flagged we can kill every player in the game no matters the faction. This tool would make the Wpvp very interesting and it will create a "lore" in the Wpvp of the game, the land is not a safe place, take care of the bandits.
It you're going to introduce warmode on/off, mercenaries can still kill you. I know that some people does not like warmode but hey brother this a war!
Listen to Wpvpers, instanced pvp is cool but it is not as cool as going in the world.
oh yes, there was a place on the map where bandits could meet, since being bandits, in unselected capital cities welcome