The Xbox Series X release date is holiday 2020, but we just learned a lot about the next-gen console in a Microsoft blog post. Xbox boss Phil Spencer talked about the Series X's speed, SSD, and cross-buy features. Microsoft will implement a glorified version of cross-buy called Smart Delivery, which allows you to purchase a game once and play it on the best Xbox hardware available. In other words, buy Halo Infinite on Xbox One, and you'll already own it for Series X.
Xbox Series X Cross-Buy Includes Halo Infinite & Cyberpunk 2077 - GS News Update
Coming this holiday season.