Xbox ONE $399 (Kinectless) GOLD services confirmed Lots of info inside.

[BMaker11]

Mowco said:
"On Xbox One, active Gold membership required to play free games you’ve downloaded. "

Looks like there going down the PS+ route with the ONE atleast.

I'm waiting for all the people saying "I'd rather keep my games. I don't like to rent" to come out of the woodwork.