According to rumors, they're still going to have various models and price points.
Also, iPhones are extremely economical because no other phones receive OS updates for as long. My iPhone 6, which cost $749 at the time, is coming up to 3 years old. It's still flawless, no speed issues or any issues. The only thing bad is that the battery isn't as good as before, but I still get through the day just fine.
I might upgrade this year just because "new & shiny", but I'll probably pass the iPhone 6 to family. And because it's still very good and receive updates, that means if I get 4 years of life out of it, its cost is actually only $375 when compared to other phones that stop getting updates 2 years in. That's really good!