The manga Haikyuu !! will finally end between issues 33 and 34 of Shonen Jump, with a scheduled release date of July 20th.
The final chapter will be approximately 28 pages long, and will also include a color page.
The 31st issue of the magazine had announced that the manga would reach the "climax" of its final arc in the 32nd issue. The manga entered its final arc on October 28th.
The author Haruichi Furudate launched the manga in 2011; it's also worth noting that the publisher Shueisha released the 43rd volume of the manga on May 13th.
Source: ANN