In games like AoW and others Walls have a proper meaning, they are structures wich need to be destroyed (or solely the gate) in order to gain acess to a city. Just should be true meaning of any Siege Machine and even some Creatures could have Wall Climbing or Wall Crushing.
Maybe even itens to do so.
In this way, the defender is really on a tactical advantage, since his enemy must break/byssas/burn/melt or whatever the walls.
Battles on citys right now are just like plain battles, what is a Siege Battle whithout walls?
I really hope someone read this and agree, I've been on EWOM beta, and still now can't find fun playing elemental, but FE is a lot better in so many ways, my only complainments are about walls and the (correct me if I'm wrong), scarcity of elemental spells.
Walls, towers, real city defenses... PLEASE