One of the most demanding games out there is Microsoft Flight Simulator. It will surely be a tough game to run for Xbox Series S/X, which is coming this summer, but an Xbox One version seems to be up in the air (joke intended).
"Obviously memory matters. Certainly on Ultra settings, you need a big PC - well, that's a lot, lot more memory than what you had on an Xbox One. So it's a journey, like most things, you know - let's get the Xbox Series X and S versions done, and then we'll look ahead after that. We never close doors, and there are other options, though it's a little bit too early to talk about it."
Basically, it still might be released for Xbox One, but probably not in a traditional way. We assume streaming via xCloud might be on of the options Neumann is thinking of.