Guild Wars 2

My idea is that there should be an island were you can buy land and build a house on, but it should not be instanced like the home in your city.
On your land you can plant and harvest materials that cannot be acquired in any other way and cannot be sold via trading post either but only from player to player.
In the middle of the island should be a big market place where you can have your own kiosk and sell your goods.

Just look what is EQnext doing with their housing.Now that is something