No doubt, iPhone 6s and iPhone 6s Plus now are the main products from Apple. But rumors about iPhone 7 has already started.
According to research of TrendForce, iPhone 7 and iPhone 7 Plus will be unveiled during the second half of 2016 and may be featured with waterproof technologies like Sony Z series devices. The next gen iPhone also might come with 3GB of RAM.
TrendForce also says that Apple will sell 260 million iPhones next year, 12.5% more than in 2015.