While Marvel's Guardians of the Galaxy Volume 2 hasn't hit theaters yet, there are already plans for a third installment. James Gunn announced on Facebook on Monday that he would be returning to write and direct Guardians of the Galaxy Volume 3. Gunn said that Volume 3 will be released after Avengers: Infinity War, which comes out in 2018. He also added that the third installment will be the conclusion of this iteration of Guardians of the Galaxy.