So people like smoker and coby can move up? Have you not read one piece? There will be new yonko eventually like luffy and eventually law etc
So why would there not be new admirals? Answer that?
There also might potentially be 10 pirate kings after Luffy in the future of the OPverse, but that has little relevance to the story at hand, now does it? The admirals aren't immortal, so obviously they will be replaced at one point. However that that happens within the scope of the current plot dynamics is a different matter altogether.
Characters like Garp and Sengoku were the faces of the previous generation and considered themselves to be outdated for the current era. So them stepping down was representative of a generational switch with Akainu being the new face. Currently Akainu, Aokiji and Kizaru are around the same ages Garp and Sengoku were when they were butting heads with Roger, with other words they are practically at the zenith of their prowess.
The reason why Akainu isn't an admiral anymore, is because he got promoted. The reason why Aokiji isn't an admiral anymore, is because he couldn't accept Akainu's promotion and left. That doesn't take away though that all of them are still directly relevant to the plot. They just needed some new admirals as one was rather low. It's also true that Akainu and especially Kizaru didn't receive that much character development pre-timeskip. So question is why would any of them have to be changed now by someone else?
Not to mention I think it has never been stated that the number of admirals has to be limited to only three people. So someone getting promoted to the rank of admiral doesn't automatically mean another one is gone. In most instances that's probably the case, but I can imagine that if one particular marine would be that outstanding they would grant the rank either way. Garp was offered multiple times that rank by virtue of his skills and accomplishments. Possible there was a vacancy, but considering they really wanted him, not absolutely necessary.
Yonkou and admirals are different positions. The former are the result of an organic king of the hill-like system that can change at any given time, the latter are well-defined ranks within a complex, hierarchical structure. So they are pretty much the complete opposite of each other. People like to compare them when it comes to battle tier, but outside that they are nothing alike.
Lastly the beliefs of characters like Coby and Smoker don't really line up with Akainu's absolute justice. He once tried to kill Coby. So it's not very credible that they become admirals under his rule and it's not very credible either Akainu will be removed from the story soon.
So questioning what happens to the admirals in an epilogue or after the story is finished, is rather redundant and on short-term it makes not much sense. In the end this entire conception is based upon the idea that because two admirals are not admirals anymore, another one has to change too? That's really not much.
How do I know all of this? Because I read the story, so I think you really need to check for yourself first whether you have read the story before questioning other people.
Because of the new general theory people had that the first 3 Admirals would be replaced with Admirals wearing secondary colors(purple green and orange) We've gotten 2 of the 3 so I wondered if people still thought the 3rd would come at this point and if so what reason would Oda have for replacing Kizaru or if Oda would just stick with Kizaru. I didn't think the question was all that confusing tbh.
As I mentioned before that's practically nothing. Kizaru has had little influence on the story so far and then he's going to be changed purely because there are two new admirals? I think Fujitora isn't even that much younger than Kizaru (if at all).
