Doesn't this prove,
Dragon/Sabo vs Akainu is more likely to happen
Than Luffy vs Akainu?
Dragon/Sabo vs Akainu is more likely to happen
Than Luffy vs Akainu?
What I wanted to say with that post is that Dragon and Akainu are like, let's say, Shanks and Mihawk: two friends/rivals very connected by the plot. But as Mihawk and Shanks' ending is not fighting between the two of them, I don't think Dragon and Akainu's is either, even though it's possible.
Shanks' endgame is Teach (I hope so at least) and Mihawk's is Zoro; same way Dragon's is the WG (maybe Garling in the end, but he'll face Imu anyway) and Akainu's is pirates (and so Luffy)