Apple typically refreshes its iPhone brand with new models every year, and this year is expected to be no different. Apple is expected to launch the successor to the iPhone 6, the 6S, this Fall. Once the 6S gets released, the next big release will be the iPhone 7.
If past releases are any indicator, Apple will release the iPhone 6S this September, and the iPhone 7 next September (2016).
The iPhone 6S and the iPhone 7 should bring significant changes over the current versions of Apple’s flagship smartphone. BGR notes that the iPhone 7 could bring a much thinner and flatter model, while the New York Post states that the new model could lose its long-standing home button and fewer hardware features in order to make the device thinner and smaller.