Why would he return? I believe he's contractually obligated to fight one maybe two more times? He's about to make more money in one fight than he's ever made in the UFC. And if he wins or if he's at least competitive, he could fight Mayweather again or someone else and literally be set for life. And if he sticks with boxing, it's less wear and tear on his body (debatedly), he only fights 2 maybe 3 times a year, makes more money and gets to spend more time with his son. Honestly, what do you guys think he will do after this? The UFC is pretty much a shit show currently thanks to Jon Jones.