Getting Marvel's Avengers on Game Pass will get you all previously released content plus all post-launch heroes and missions, including War for Wakanda and Black Panther.

'Marvel’s Avengers' will be coming to Xbox Game Pass on September 30, including all post-launch heroes and missions as well.

However, Marvel's Avengers on Xbox Game Pass does not come with the eight cosmetic items that are in the digital-only Endgame Edition; this edition has to be bought separately.