The 29th chapter of Kōtarō Yamada’s Sword Art Online: Project Alicization manga has announced that the manga will end in its 30th chapter on June 11, 2021.
The story of the manga is described as:
Deep in an unfamiliar forest, Kirito awakens with sensations far too convincing for a virtual world… with memories of a life he doesn’t remember living. A boy and a girl… and a name that sticks in his mind: Alice.
Yamada launched Sword Art Online: Project Alicization in Kadokawa’s Dengeki Bunko Magazine in August 2016. Yen Press publishes the manga in English.