Yes, you are not dreaming: the Apple webpage of the accessory “iPhone Lighting dock”that Apple launched two days ago shows up a strange iPhone which does not exist in the current Apple’s iPhone line up.
If you take a look closely at this image which remains on Apple webpage of the iPhone Lightning Dock, you will notice that they show it with an iPhone 5c. But looking further down, you will notice that at the bottom of the screen of the iPhone 5c, there is a Touch ID sensor! This is very surprising because we are not used to see Apple Making such big mistakes when you know how much they care for details and how much they secure every document that goes online and touches their communication.
As surprising as it may be, this could be the iPhone 6C, the successor of the iPhone 5C, which would therefore offer Touch ID user identification.