I'm here before all the YouTube reviews two months from now complain that the iPhone hasn't got a redesign in 2019.
The tick-tock cycle is gone. The redesigns now take place every three years rather than every other year. The iPhone 7 retained the iPhone 6 / 6S design and added an extra lens. The 2019 iPhone will keep the iPhone X / XS design and add an extra lens. This pattern is likely to continue well into the future.
Once the notch is removed, there will be no significant steps left for redesign. It will probably be light edits every four years like the MacBook Pro.
submitted by / u / zomedleba