Akainu is fighting Luffy for sure (too much behind it) but the folks that are pushing Akainu vs Sabo for agenda reasons might be disappointed lol. Sabo is one of the three legendary "brothers", for his EoS fight he might legit be above every current emperor and above Dragon himself. Akainu will rock the world of someone like that for a good chunk of the fight and Sabo will get some powerup in order to win extreme diff.
I'd be careful, I'm just saying