According to the odds, Jon Jones will find himself in unfamiliar territory if he ever faces off with Francis Ngannou. 

SportsBetting made Ngannou a -150 favorite over Jones in a heavyweight bout. Bones is listed as a +130 underdog at SportsBetting  

Ngannou vs. Jones
Francis Ngannou -150
Jon Jones +130

Ngannou is also listed as a favorite, even a smaller favorite, in a hypothetical match against the retired Daniel Cormier. 

Ngannou vs. Cormier
Francis Ngannou -140
Daniel Cormier +120

Additionally, the sportsbook put up a few Conor McGregor related prop bets, including his next opponent and odds for a Floyd Mayweather rematch.

Conor McGregor next opponent
Nate Diaz +250
Khabib Nurmagomedov +300
Justin Gaethje +450
Tony Ferguson +500
Dustin Poirier +650
Jorge Masvidal +600

McGregor vs. Mayweather II (Must be boxing match. Fight must occur before Jan. 1, 2021)
Conor McGregor +800
Floyd Mayweather -2000

Gaethje vs. McGregor
Justin Gaethje +125
Conor McGregor -145

Gaethje vs. Nurmagomedov
Justin Gaethje +200
Khabib Nurmagomedov -235

Finally, these are the location odds for UFC 250.

UFC 250 location
Nevada -125
Florida +150
Arizona +800
Georgia +1200
Fight Island +2000