Request: Expanded Arena Mode? (Hall of Valor)

The one thing you REALLY nailed in this game is the gameplay/combat.

Even though I have finished the game, I constantly comeback just to fight in the Hall of Valor or replay the final story mission PURELY for the fun I have with the combat/gameplay (I play Full-Archer).

Is there any plans or chance for you guys to add an expanded Arena Mode or DLC?? The current Hall of Valor fights are WAY too short and easy and they only last one single round which is over in less than 30 seconds. 

At least if it were something like 5 rounds with increasingly difficult enemies, it would make it AWESOME (especially if you could add a feature which lets you fight boss enemies that you have already beaten at whatever point of the story you are up to)