"And now here's the big question: What now?" #UFC207 https://t.co/KCckIkNI22
— #UFCMelbourne (@ufc) November 22, 2016Former women's Bantamweight champion -- and box office behemoth -- Ronda Rousey will return to the Octagon for the first time in more than one full year, challenging newly-minted 135-pound queenpin, Amanda Nunes, at UFC 207 inside T-Mobile Arena in Las Vegas, Nevada, on Dec. 30, 2016. It could very well mark the final fight for the crossover superstar, who recently hinted that she would retire from the sport sooner than later.