im wanting the dark brotherhood to be awesome and this is how id love to see part of it playout
your contracts are actual players playing at that time within a reasonable level gap so its the only PVP outside of the PVP designated area , kinda in the style of dark souls invaded element. you could stalk your victim and wait for the perfect time to strike, become friends and team up and then kill them etc... something to make you think why is this character following me and keep you on your toes. that's what id like to see just to keep the game fresh while running around the world.