The thing about Apple products is that they rarely change the overall design of the device. Laptops, tablets, smartphones and watches have appeared to be very similiar year after year and that is why the overall design is talked about even less by consumers.
Instead, the performance of the smartphone, or other device, is what peaks the most interest in consumers. As long as Apple can stay ahead of the processor and camera game, the iPhone will be a very popular purchase year after year. Apple usually holds its own events when a new product is being launched.
The event for the iPhone 6C is expected to arrive sometime in March of this year and that will also be the time when Apple launches the next generation Apple Watch 2. The Apple iPhone 6C is going to be as popular as the iPhone 5C, which sold more than 20 million units.