Where Star-Lord and company left off at the end of Guardians of the Galaxy Vol. 2 is vastly different from where the Benatar's crew find themselves at the end of Avengers: Endgame. For starters, Gamora is "dead" and her younger self is now trapped in the present. There's also the matter of Thor now traveling with the Guardians who are presumably on a mission to go find Gamora (who scattered to the winds as everyone mourned Tony Stark's death). However, Thor: Love and Thunder will be released before Vol. 3 hits theaters so the God of Thunder will likely be parting ways with his new space-faring friends long before MCU fans see the Gamora/Star-Lord dilemma resolved.
With all that said, and the drama surrounding Gunn's firing and re-hiring, have plans for Vol. 3 changed? Taking to Instagram for a fan Q&A in-between shooting scenes for WB's Suicide Squad sequel, Gunn stated, "The script will change because my scripts always keep changing up until the moment I shoot them.But it won't change according to anything from Endgame, because I already knew what was in that script before I wrote Guardians 3."
Guardians of the Galaxy Vol. 3 is due to start filming in late-2020. Gunn was originally confirmed to write and direct Guardians of the Galaxy Vol. 3 in April 2017. Controversy surrounding his old jokes on Twitter led Disney/Marvel to fire Gunn in July 2018. Following support from his cast and other key Marvel Studios execs, Gunn was rehired in March 2019. He is expected to complete work on The Suicide Squad in early-2020.