The widely held belief is that Brock Lesnar would be immediately booked into a rematch against Alistair Overeem if he decides to return to UFC. Overeem was the person that defeated him for the heavyweight championship before he decided to retire from MMA and return to WWE.
After TNA Lockdown 2014, Seiya Sanada is sticking around and working a couple of episodes of Impact Wrestling. The belief is that Dixie Carter and company will be giving him a nice push, as management wants to maintain a good business relationship with the Great Muta and Wrestle-1. They also want to entice other Japanese stars to come tour with them.