So... as I'm eagerly awaiting Friday and my iPhone X, I've heard through the grapevine (thanks Da'Mon) that the X has a brand new default ringtone. So... I went to searching lol.
https://9to5mac.com/2017/11/01/iphone-x-exclusive-default-ringtone-reflection/
https://9to5mac.com/2017/11/01/iphone-x-exclusive-default-ringtone-reflection/