The Fantastic Four and Blade could be left out of Avengers: The Kang Dynasty, and that decision could be for the best. Marvel Studios is currently developing new solo films for the Fantastic Four team and Mahershala Ali's Blade, which will see them join the Marvel Cinematic Universe shortly before Phase 6 delivers Avengers: The Kang Dynasty. The fifth Avengers movie is expected to be the place where the MCU's new Avengers team finally forms, creating plenty of speculation about who could be on the roster. With the entire Council of Kangs potentially appearing as the film's villain, Avengers 5 could use as many heroes as possible.
https://screenrant.com/avengers-5-kang-dynasty-no-fantastic-four-blade-good/