I don't think we'll let people camp on a jump point - part of the reason is that not everyone gets spit out in the exact same location - more a radius around the exit position.

Having said that I do want to have some parts of a system in the lawless areas that can have choke points to allow a group to control some areas - if there's less than 100 people contesting the area its pretty simple to do, but if there's a bigger group of players it going to be a challenge in how to manage people / instances.