I have a theory on the designs we are seeing. The iPhone 8 in iPhone 7 plus size (5.5 inch screen) will become the new normal iPhone. The 4.7 inch model will become iPhone 8 mini. Both will have the rear fingerprint allowing for bigger screens on the front. The "iPhone 8: Edition" will be the new iPhone Plus model, may even get renamed to iPhone Pro. This will include the fingerprint sensor in the screen, AR, wireless charging and all the other features we are seeing from the other design going around. So I think both designs going around will be used.