iPhone: Is there still a need for a “C” Model?

(Photo credits: Phone Arena's Phone Size Comparison Tool)

Last year with the launch of the iPhone 6 and 6 Plus, the iPhone lineup for the first time offered consumers the ability to choose the screen size of the iPhone they want. Consisting of the smaller, cheaper, but still very capable iPhone 5S at 4", the iPhone 6 at 4.7", and the iPhone 6 Plus at 5.5". But this year come September, the iPhone 5S would be 2 years old, and no longer a viable candidate as a cheaper and smaller option due to its age.

To me it presents an interesting problem, which is “What about consumers who love the one-handed ease of use of the iPhone 5/5S?”