Well that's a lot of hats !
So why not finish the project but making it super generic? Strip all star wars terms out. Then when the game is finished, allow for modders to make a conversion mod that will reinsert the star wars material? That way he can finish it and we all can get what we want and no one has to give up on their dreams.
When are you guys going to make God of War 5?
Allegorithmic: Bitmap2Material 3 – The ultimate PBR map generator
This is a demonstration of a great software tool Bitmap2Material. It allows to generate full materials from any bitmap image. The software now has all PBR (Physically-Based Rendering) channels that are based on the most precise conversion algorithm.