Paddy Power, which calls itself Europe's largest betting company, thinks the most likely surprise is one that wouldn't be much of a surprise at all.
The company reports 2:5 odds that Trump — a so-called "birther" who is skeptical of the president's citizenship — will say Obama is not an American.
Here are the other nine top bets being placed:
4:1 odds that Trump, known for the catchphrase "You're fired!", will say he's going to 'fire an Obama impersonator.'
8:1 odds that Trump will endorse Obama. (From this side of the pond, those odds seem way too high).
50:1 odds that Trump will invite Obama to be a guest on Celebrity Apprentice, the star-studded offshoot of his show the Apprentice.
75:1 odds that Obama will be given an honorary membership at the Trump International Golf Links in Scotland, a controversial golf course currently under fire by environmental groups and local residents.
250:1 odds that Trump will say Obama knows the Moon landing was staged, a conspiracy theory akin to Birther theories about the president.
250:1 odds that Obama will be invited to be the host of the Apprentice if Mitt Romney takes the White House, an invitation the 44th president is sure to take.
250:1 odds that Trump will say Obama is an Alien.
500:1 odds that Trump will say: "I'm your father Obama," apparently picking up the mantle for Darth Vader.
500:1 odds that Trump, who many think wears a toupee, will announce that Obama wears a wig. And yes, the odds for Trump saying Obama is an alien are better than the odds he will say the president wears a wig.
With the extremely low odds of Trump announcing anything of significance about the president,