The news that Thor was being replaced by a woman (whose identity is still a mystery) was not well-received by some fans, and a lot of sites ran just the kind of inflammatory headlines you might expect after such an announcement. When Thor lost the ability to wield Mjolnir under mysterious circumstances, he allowed this equally mysterious female warrior to take over the mantle, deeming himself "Unworthy". Despite the controversy which surrounded the initial announcement of this new Thor, her comic book series is currently selling even better than the original Thor's, so don't be surprised to see her one day join the MCU.