Of course people have been talkin about this.Its boring getting to the core and having to do nothing really.

Maybe when you reach the core,a boss will be attacking core.(I dont know what boss)When you beat it,this guy tells you something about a area in the core.He tells you directions,and there will be a tunnel that leads somewhere.There are hard enemies in there,so be prepared.When you reach the 4th 'depth',your not in Haven,but a new place.(I dont know what it would be called either)There will be AH and Bazaar and Arcade.But new gates and stuff.Maybe it will be bigger than Haven,and be a city or something.There are people that can tell you stuff about it.There are new weapons,bosses,enemies,and...AREA EXPANSIONS!^_^