Now, I think that Indian Ocean's supremacy will be challenged by Europe... Colonial World War between the rising Europe and the falling Indian Ocean? Guess we'll play and see, though I would preffer Indian Oceaners and Europeans to cripple each other so Siberia would FINALLY rise to dominance in this world.
By the way, will some powers be less advanced then the others (also, will some powers be more powerful then the others, despite having the same characteristics, due to their location and stuff)? And will there be barbarians?
And finally, is that Middle Asian nation some Mongol leftover or a local nation? Did the Mongols ever rise to some level of dominance in this world?