I don't have any other NPCs at the moment. I've noted that there are already demand for an expansion pack. If you need any specific assets, you are always welcome to contact me about custom commissions at penzilladesign@gmail.com
My personal suggestion is that the new character pack can be themed around heroes, human villains, and monsters from the DND worldview. Static images are not suitable for game, but rather for boardgame products (which is why I purchased it)