You've already done large-scale empire and regional-conquest achievements (Ottoman/Byzantine/HRE/India focus like Basileus, Mare Nostrum, Emperor of Hindustan and Conquer-Germany-style runs), so pushing into related goals of forming Poland from a small Polish start, then tackling full German conquest as Nagaur and aiming to control both China and the HRE as Russia gives a coherent next set that builds on your experience with big empires, European power politics, and ambitious conquest goals.