I have played around with a wad extractor for a while now, and it seems like it should be pretty easy to replace the low res in-game textures with the corresponding character creation textures. Simple renaming.
I guess however that this is not legal, considering this is an MMO?
I know I'd like to see this, and I can't be alone in this regard.
A better way would of course be to allow the overwriting of certain main files by using an override directory. This way the devs can control which files are replaced.
At the moment, there seems to be no checks for changes on launch of the game, so that gives the impression that they want us to be able to mod the game. I think they said they wanted addon functionality if possible as well. I just want some discussion around the subject.
Currently there have been no bans for client side modifications.