Will Apple still be upgrading the product iPhone in the year 2017?

Is there a possibility that there will be iPhone 7, iPhone 7s and so on. Does this mean they will not stop upgrading iPhone and still be selling them at 2017 and so on

That's only 3 years away so I would think so

In the high-tech world, three years is eternity, so there's no way of knowing for sure. But chances are that things will be much as they are now. And without Steve to come up with new stuff, and given the success of the iPhone, it seems likely that it will still be around and upgraded in 2017.

  • Will apple still cover me with their 1 year apple warranty? My uncle gave me his iPhone 4S as a gift, it has warranty until November 2013 and for some reason the phone turns off by itself about every 3 hours! The phone does not have any water damage as the water indicators are white, will apple still cover me on fixing it or giving me another one since I'm not the original owner but the phone is still under their warranty!
  • What's the difference from an OEM product and an original product? I need a new charger for my iPhone and I don't know if I should go buy an OEM charger from eBay or go buy an actual apple charger from Walmart that's going to be way more expensive. Since OEM is basically the same thing without retail packaging, would there be a difference in quality?
  • Is there way to use an Apple Sport Watch without any other Apple product? I got an Advantek sports watch for christmas but have no Iphone. Can I use something else to charge that watch? Is there an app that converts Apple to MS or so?
  • Is the iPhone 6s Plus still good in October 2017? The reason I ask is because I currently have a nexus 6p but the battery is horrible! So I want a different phone and my girlfriend has kind of persuaded me to get an iPhone. But I can't afford a 7/7 plus plus, or 8/8 plus so that is why I'm looking at the 6s plus. I also have a MacBook so I know that if I get an iPhone It will work good with it.