We are just not willing to push new stuff in when large sectors of the game are completely unpolished and need optimized and improved.
There is character R&D going on right now for new player outfits that replaces UMA. It just *MIGHT* work for bandits too so once players are overhauled then we can decide if bandits are skinned meshes like zombies, or assembled parts via pieces after the new player clothing/armor system is completed we can do some stress tests and see and make the right calls. Then bandits can sort of fall out of the character system instead of a separate effort.