According to Jeff Grubb of VentureBeat and VGC, Microsoft will be airing their Xbox Series X games showcase very soon. Both sources claim that the showcase is airing within the week of July 20th. VGC claims that its currently planned for July 23rd and include first ever gameplay of Halo: Infinite. More games from both Xbox Game Studios and third parties are expected to show up.
This is still considered a rumor so please take this report with a grain of salt. Stay tuned at Final Weapon for the latest gaming news and updates!