I know this is a little bit of necro-posting but, this is a great idea. DoF is being touted as an MMORTS. While it does have some (albeit very few) mmo features (aside from playing with other people) hero customization would start to bring it in line with a true MMO.
Being able to customize your hero to your liking would allow you to become more immersed in the game.The ability to custom select his appearance and damage type (magic/ranged/melee) and also be able to choose your two skills would be absolutely amazing.
I know there are a lot of things that need work before something like this can be done, but it is something that should definitely be looked at. Heck, I bet most people would even be willing to use the cash shop to be able to make your hero different from everyone else.