Oda has incorparted many aspects of different mythologies around the world. He uses different languages to create names and what not for each character. What would you like to see incorparated in the future and why?
My personal idea is Hindu mythology. There are many different sects and many gods or even past kingdoms (hindu and muslim) to draw information from. I would personally like to see a warrior either similar to the goddess Kali or any incarnation of Shiva. Shakti would also have to come along with Shiva. That would be the ultimate duo for Luffy to face. We have yet to see a full out battle between Luffy vs. 2 opponents at the same time (well i cant recall any fights like that right now, feel free to correct me.)