add rivers, and the ability to build a city, i,e, skyscrapers, And, Warp Gate
The maps need more interactions, and also some maps that are not plain and boring - give us stuff to blow up that is not necessarily part of the game
Have some rivers, animals and other things to interact with. i.e. a warp gate to teleport you around the maps.
Do something that feels epic.
A warp gate where you can telelport to another area and hide out in.