In an interview with Stratechery (behind a paywall but reported on by The Verge), Xbox head Phil Spencer discussed a possible strategy for getting Game Pass on televisions.
Spencer said "I think you're going to see lower priced hardware as part of our ecosystem when you think about streaming sticks and other things that somebody might want to just go plug into their TV and go play via xCloud." .
It'd allow users to essentially play Xbox games without owning any Xbox hardware beyond the TV stick.