I noticed something strange. On Impact, they said that the four men competing (Angle, Nash, Sting and a mystery partner) have held 40 world titles combined. I had a look on Wikipedia:
Angle - 8 (2 TNA, 6 WWE)
Nash - 6 (5 WCW, 1 WWE)
Sting - 11 (9 WCW, 2 TNA)
That is 25 world titles combined. But somehow, TNA says Angle has 11 world title wins. I don't know where they got 11 from, but if you accept that, you get a total of 28 world title wins. So any mystery partner, would need 12 world title wins to make it 40. Booker T has 6 world title wins (5 WCW, 1 WWE), so he doesn't bring the total to 40. What about the other candidates:
Goldberg - 2 (1 WWE, 1 WCW)
Sid Vicious - 4 (2 WWE, 2 WCW)
Hulk Hogan - 12 (6 WWE, 6 WCW)
Randy Savage - 6 (4 WCW, 2 WWE)
Big Show - 5 (2 WCW, 2 WWE, 1 ECW)
Chris Jericho - 3 (3 WWE)
The only one with enough title wins to make it to 40, is i'm sorry to say, Hulk Hogan....
I hope to god it isn't him. Maybe if TNA gives Angle more title wins than he actually held, they would do the same for the other guys. Then it could still be Booker T.