I know this was news came out about 2 days ago, but it wasn't here so I decided to post it here.
Originally posted by another user
Based on our checks, likely updates include a new super HD camera/screen, a better battery, and NFC. Possible updates include an IGZO screen for Retina+, 128GB storage, and coming in 6 to 8 colors.
Originally posted by another user
Several iPhone 6 prototypes appear to be floating around. The model with a 4.8" screen is the most interesting. It has a Retina+ IGZO screen, a new A7 quad-core processor variant, and a new form factor with no home button. Full gesture control is also possibly included.