Random question of the day

Can you think of any match between two men currently alive that have already fought at Wrestlemania that would generate over 1.5 million buys for next year's show?

I would have to go with Brock Lesnar vs Floyd Mayweather.

The Rock v. Steve Austin, in promotion of their action movie together where Rock plays a CIA agent tracking down Austin's supervillain who is trying to kidnap the President and give him a stunner or something.