Barricades and other unique terrain.

I'd like to see a map where not only do you have to destroy turrets but you should also destroy barricades that block your way into the enemy base. I notice that's what Heroes of the Storm had with the gates.

Also, what if their were areas that were only accessible to certain champions? Specifically pits where only flying champions can go over or underground caves that only ground champions can go over? So only ground champions like or can go through underground tunnels but only flying champions like or can go over bottomless pits.