A scene explaining Thor's parentage?
Im probably in the minority here, but I would love a scene where Frigga mentions to Jane that shes Thor's stepmother and that Gaea is his true mother. A brief, but poingnant "breather" scene, that could expand the mythos (within the MCU anyway) while providing a bonding moment for Jane and the Asgardians. Plus, it helps to explain Thor's devotion to the earth and humanity - not to mention his power levels - while adding another layer of mystery. My two cents.