The iPhone 7s and 7s Plus will be released by Apple later next year. According to Mac Otakara (Japan), the phones will be offered in a new red color and they’ll use the same core design as the iPhone 7. Internal changes, such as an upgrade to the A11 processor, will be present.
Depending on how this report is interpreted, it might lend support to the claim that Apple is working on three models for 2017. Two will be as Mac Otakara has detailed while the third is going to feature a glass backing and a curved OLED display.
However, some reports claim three glass-backed iPhones are on the way.