One of the main criticisms behind both Microsoft's Games with Gold program, as well as Sony's Instant Game Collection for PlayStation Plus subscribers, is that not enough new, big AAA-titles are featured.
Apparently Microsoft has heard the outcry from fans, and is now calling next month's batch "Blockbusters", this according to a new tweet from the official Xbox One Twitter account.
Expect the proper reveal for next month's free games on both platforms in a week or so, and remember that even Xbox 360 games are playable on Xbox One thanks to backwards compatibility, so those so-called blockbusters could be both old and current-gen titles.