Before James Gunn’s firing, Guardians of the Galaxy Vol. 3 was one of the only projects announced for Phase Four, and was set follow Spider-Man: Far From Home in the new MCU. But his departure put the franchise in question, as its unclear if/how the upcoming threequel could function without his vision, dance moves, and taste in music.
Article source: https://www.cinemablend.com/news/2463823/looks-like-james-gunns-guardians-of-the-galaxy-3-script-is-a-real-tear-jerker