Rumple at the beginning asked for Snow and Charming’s baby girl’s name for a reason. He also created the curse. He bottled Snow”s and Charming’s hairs. He is triggered by Emma introducing herself to Granny with Red and Gold present. He asks for a favor to cashed in later for Ashley to keep her baby Alexandra. He has seemed to retain the power of foresight which is proven yet inconclusively confirmed by after the election. Emma’s a Princess in her own right heir to Snow and Charming. What if all of those prior dots connect to him via Emma breaking the curse, becoming human again, eventually finding the thing he loves the most, and totally seizing control of everything and everyone. All at others’ expenses. Everyone is going to destroy each other and he will captialized on all of the chaos to be the ulitimate top dog, becoming the hero and redeeming himself while everyone else will take the blame.