The more I become part of attacks and the more I see the frustration of realms having to attack pretty much only their neighbors, the more I see the need of some sort of tournament square (Travian)
Tournament square: (Or whatever other name)
A building that will give increased speed to those travelling further than X amount of squares. Made so that you can't just super boost your attack vs a realm right next door.
Colosseum: (Or whatever other name)
A building that will increase your arks troops speed within your own realm by up to 100% at level 20, so that you can easier defend your realms borders if your units are stuck defending somewhere else at the other side of the realm.
At level 50, gain 1 slot for a custom warlord where you decide the troop composition. The amount of troops on this particular warlord should still be within the limits of reason ofc, so that it is not stronger than the other warlords you have access to. But with the exception that YOU decide what warlord skill he/she should have. This will make it possible for players to customize a warlord to their own preferences. (A full on defender, a brutal attacker, or a fast running scout that can check enemy reactions to attacks.)
(This is an idea instead of the Colosseum)
An option for the realm to (Every 25 levels) build a teleportation shrine somewhere in their realm. This shrine can be transferred to from the realm capitol by 1 warlord of each player every 2 hours.
An enemy should be able to attack it, and thus prevent teleportation for 24 hours.