https://www.gamespot.com/articles/xbox-could-launch-a-streaming-service/1100-6454715/

On the eve of the Xbox One X launch, Microsoft is talking about what may come next. In an interview with Bloomberg, Xbox boss Phil Spencer said Microsoft may launch a streaming service by 2020. Here is the exact wording from Bloomberg's report:

"Microsoft will probably debut a streaming service that doesn't require a console for some types of content in the next three years, Spencer said."