I am not sure if this has already been implemented or not, or is in planning, but I would like to see audible responses from units when they are clicked on or moved. With that in mind, it would be interesting to see the ability to assign audio files during the create unit process and apply them to the various actions/events units partake in. (Select, Move, Attack, quest completion, etc...). The game could start with standard sounds for various units and then users could import there own as part of mods or add to a folder in the game directory so they could select them in the game. If a wide berth of actions would be too complicated to support for the game, at the very least, the ability to change the unit recognition sounds would be great!