Rousey was at a WWE event in September and teased at an appearance in the wrestling promotion when a video was released of her talking to friend Shayna Baszler (a former MMA fighter) and Becky Lynch, Charlotte Flair and Bayley.
"You name the time, you name the place," Rousey said in the clip.
Rousey also made a guest appearance at WrestleMania in 2015 alongside Dwayne "The Rock" Johnson when she confronted Stephanie McMahon and Triple H.
While yet to officially announce her retirement from the UFC, president Dana White — her biggest supporter — said recently he hoped she didn't return to the Octagon.
"I wouldn't want to see it," he said last week. "I wouldn't want it to happen. I care about her. She has got money … and all that stuff. I don't want to see it happen."
Even when she was fighting Rousey was keen to explore other options. She's starred in films like Entourage and The Expendables 3 as well as TV shows such as Blindspot and Mile 22 (currently filming).
Some suggested Rousey may have been distracted by her other commitments, which lead to her downfall in the UFC.