The Russo brothers replace Whedon as directors for the Avengers franchise. The first movies in the series they will direct are Avengers: Infinity War Part 1 / Part 2, which will be shot all at once. Whedon had hinted that Avengers: Age of Ultron would be his final one:
I couldn’t imagine doing this again. It’s enormously hard, and it [will] be, by [the time I would make ‘Avengers 3 & 4′], a good five years since I created anything that was completely my own. So it’s very doubtful that I would take on the two-part Infinity War movie that would eat up the next four years of my life. I obviously still want to be a part of the Marvel Universe – I love these guys – but it ain’t easy. This year has been more like running three shows than any year of my life. It is bonkers.