I dont know if this on the road map, but I think people who go around murdering in PVP should eventually be locked out of the game, and they spawn in Detention Facilities if they try to log in to the game.
For first offense, 10 days,
Second offense, 30 days
Then 60
Then 120
[up]
For first offense, 10 days,
Second offense, 30 days
Then 60
Then 120
[up]