I have to say i thought about possible similarities between OUaT and Revolutionary Girl Utena. My thoughts are around the 'Witch and Prince/White Knight interaction' and about the power that Rumpelstiltskin have over everything in that city. Depending on how the writers will address, theses storylines can match with the anime ones. But, for the other side, as Disney Production surely the writers won't do that.=/

Sorry about my english mistakes.