of course it is possible. But is it worth it? It will take extra room beacuse you will need to make a new model based on arthas and then import it into the game, and he is one of the biggest models in the game
You can, but will have to import it, how else can the player's get the edited model? They can't just get the edits, (like an image, the image doesn't update when you download a new one, it just makes another with the edited parts)
Ghan has said he has fixed this. Monovertex please confirm this fix. This was only a problem with people that had signatures in the upper levels like not the special members but the respected members.