It has been confirmed by different sources that iPhone will have a USB c port next Year.
Apple is expected to transition its iOS devices to USB-C connectivity later this year, by by shipping a very fast USB c cable and a new 18W charger. This will move new iPhone buyers over to using USB-C for charging with a cable. It will also mean that customers can take advantage of Type-C fast charging without needing to buy additional accessories.
This is a great news as it will enhance iPhone’s compatibility.