I can honestly see it. Akainu is set to be a possible future endgame opponent (or ally if you didn't see my Akainu and Luffy post) and is the only marine right not likely capable of actually ending Luffy. He made the government a lot stronger over the two years and has everything a conqueror requires. He has a strong ambition of wanting to end all evil including, his will is strong and his goal is set, a possible future endgame opponent or ally like I said previously, and is just a fierce opponent in general. Heck, the Gorosei all have conquerors and are directly below Imu and are dogs to him/her, anybody saying Akainu wouldn't have it bc of his nickname "red dog" and being a dog to the government really can't use that logic at this point in time considering a lot of characters are government dogs and likely have conquerors, including Shamrock and Garling.
All in all, he's def going to have it in the future.