I would love to see the Camelot arc end with Guinevere on the throne. She seems like a good person who understands the balance of love and power (when she's not being mind controlled by Arthur).
I loved that moment last night when Arthur was angry at Charming for betraying his oath as a Knight of the round table, and Charming was like - Screw you and your round table, I care about my family. Loved that.
A&E said we would see who puts Excalibur back in the stone, so I'm very curious to find out how that comes about.