I mean, if you want to get technical, they already did. The Hellblade 2 reveal was in-engine running on Series X. Not quite the same as gameplay, but neither was the Unreal 5 demo for PS5; it is a tech demo, not an actual game. And Hellblade 2 overall looked better than the Unreal demo in my opinion, Senua in particular blew away the character model in the UE5 demo, but the environments in the Hellblade 2 trailer were pretty darn impressive too. The Bright Memory Infinite Xbox Series X gameplay also looked pretty darn good, especially considering it's a 1 man dev team.
But either way, we'll be getting more Series X gameplay at the 1st, 2nd, and AAA 3rd party event in July. Not too long to wait now to see what Series X is capable of. If the rumors are true, they'll have multiple graphical showpieces there, including next-gen builds of Halo Infinite and Forza Motorsport 8 (which are rumored to be built from the ground up for Xbox Series, so that they won't be held back by XB1). I wouldn't be surprised to see gameplay footage from Hellblade 2, The Initiative's AAA game (rumored to be a Perfect Dark reboot), and Playground's AAA RPG (rumored to be a Fable reboot) as well, which should all be graphical showcase titles. Also we'll likely see the Series X port of Flight Simulator, which will be about as gorgeous as the PC footage we have seen of the game. And there will be 3rd party AAA's there as well, like actual gameplay footage for AC Valhalla and the next-gen build of Cyberpunk 2077; I'm sure MS has several other big 3rd party marketing deals as well.
Last edited by shikamaru317 - on 04 June 2020