The third and final volume of the KINGDOM HEARTS III novel adaption written by Tomoco Kanemaki, titled "Remind Me Again" will be released on May 28th 2020. Amazon Japan's product page features the cover art depicting Sora, Donald, Goofy, Riku, and Mickey as Master Xehanort looms in the shadows.
Filled with illustrations by Shiro Amano! This one book will cover everything up to Kingdom Hearts III ReMind.
Sora, Donald, and Goofy travel to various worlds and reunite with Jack Sparrow in the Caribbean.
In San Fransokyo, he fights with Baymax.
Finally, Ventus awakens from his slumber and the Seven Guardians of Light gather to fight against the Thirteen Seekers of Darkness in a decisive battle.
The battle was fierce, and Sora misused the Power of Waking.
Nevertheless, in order to save his friends and reclaim Kairi who was lost in battle, Sora faces his fate without regard to his danger.
The Dark Seeker Saga is finally complete in this final volume of Kingdom Hearts III.
Source: aibo_ac7 via Twitter