Akagi obtained her second remodels on the May 21st 2019 (Spring 2019 Event) update, termed Kai Ni and Kai Ni E and shows (along with the Ise-classes' ownremodels) how Shibafu has improved.
She keeps the same basic outfit with minor changes. Her skirt is now unambiguously a shortened hakama, her left tasuki loses its prominent bow, her sleeves gain ribbon trimming, and her thighhighs are replaced by tabi with black thighhigh gaiters. Her gear is built up from base with (at Kai Ni) two extra quivers on her hips, a black flight deck, a black yumi, and more modern AA guns (long 10cm guns).
In her Kai Ni E remodel, she is dimly lit for night operations, reflecting her new ability to fight in night battles, and her eyes gain a slight glow (although this can be attributed to how the iris interacts with light). Compared to her Kai Ni gear, she replaces her AA gun and her left quiver for a sword.
These remodels are essentially hypotheticals, reflecting what she could have been if she hadn't been sunk at Midway. There were plans to modernize Akagi after Midway that would have remedied aiming and firing radius problems with her 120 mm twin mounts by moving them one deck up for cross-deck fire, and ultimately replacing these 120 mm with newer 127 mm dual purpose twin mounts.
