I was hoping you can add in support for custom content such as custom skins, custom models, custom maps etc. I always love making custom skins and models for games and seem to be unable to find a way to add this. Also a map editor or map creator to allow for custom maps would be a fantastic addition to the game. Also i'm not sure if there is a developer mode or a dev console but if there isn't something like that would be a very welcome addition
Read the Steam store page again. There will be a map editor! :3 Not sure how the custom items thing will work out though.