Weasels are limited by sharingan's defects, and even if they develop for another ten years, they will not make much progress.
In fact, I personally think that the comprehensive strength of ferrets in the plot has been very prominent, with strong endurance, illusion and physical ability. With a cool head and strong analytical ability, ferrets are a difficult role to deal with. But objectively speaking, the development potential of ferrets is not as good as that of Namikaze Minato, because most of the skills that ferrets have mastered have been formed, such as all kinds of fire, water, illusion and shadow coordination tactics. And ferrets' eyes are equally difficult to improve without evolving to the eternal kaleidoscope level.
Moreover, as time goes by, if ferrets continue to use Saringan's kaleidoscope skills, they are likely to be blind and can't win Sasuke's kaleidoscope in pursuit of strength. This puts an invisible yoke on ferrets' ability to improve. In order for Suksuke to evolve, ferrets must evolve sharingan to the highest form to solve the problem of blindness. Ferrets can't be brothers' assistants.
So ten years later, I personally think ferrets may be more mature in the use of various combat skills, but we can't ignore the problem that their eyes may be blind. Even if ferrets don't have eye diseases, their fighting capacity will drop sharply, because Saringan's skills are useless, and there is little chance to deal with Namikaze Minato with ordinary Ninjutsu.
In fact, the key to limiting the growth of ferrets is that ferrets can't solve the problem of blindness caused by excessive use of kaleidoscope sharingan, and ferrets basically have no chance to upgrade to eternal kaleidoscope sharingan, so even if they are given another ten years, the growth rate of ferrets is still limited.
With Namikaze Minato's talent, we should be able to greatly enrich our arsenal in the next decade. Facing ferrets, Namikaze Minato's advantage in speed will continue to expand.
Namikaze Minato gave most Naruto fans the impression that he was good at sealing and flying Raytheon, and had rich combat experience, but he lost a lot of chakra. In fact, in terms of setting, I personally think that Namikaze Minato has great defects in attack skills, and Namikaze Minato lacks ninja skills that can be used for medium and long-range attacks.
However, with Namikaze Minato's talent and ten years' time, he should be able to develop the medium and long-range attack capability suitable for his own combat system. Coupled with the more skilled immortal mode and the improved and more powerful flying Raytheon technique, Namikaze Minato should have more comprehensive fighting capacity than ferrets, so even if two people fight, Namikaze Minato's fighting mode will not be limited to using flying Raytheon to approach opponents and using spiral pills. If Namikaze Minato can develop skills similar to shuriken's spiral pills, or integrate magic into Raytheon, killing ferrets is more advantageous, because ferrets' magical ability and the eight-foot mirror with ten fists are more troublesome.
In ten years' time, sharingan of skunk may be blind, and Zhao Tianhe and Harle will not be able to use it. It is difficult to defeat Namikaze Minato by Sasuke alone. Even if the ferret doesn't overuse sharingan, its capabilities and characteristics haven't changed much compared with the original, so it's difficult to lock in who can use Raytheon in Namikaze Minato. Therefore, I personally think that the growth rate of Namikaze Minato will be higher than that of ferrets in ten years. After ten years of development, Namikaze Minato should be able to develop some new skills to make up for the weak ability of medium and long-range attacks, and at the same time, it will be more skilled in using immortal mode.
Finally, to sum up, I personally think that the growth rate and strength of Namikaze Minato will be improved even faster in the next decade, and the defects of sharingan mainly limit its further development. If sharingan of ferrets doesn't evolve to the eternal kaleidoscope level, it will be in danger of blindness and its strength will be greatly reduced. Please forgive me if the analysis is not in place. If you have other ideas, please leave a message to discuss.