Cell phone cameras and their associated PP capability are good at lower resolution (lower detail) wide angle shots, including portraits, to be posted on social media or for making smaller prints. They are convenient as everyone has one on them and require very little skill to operate. We have all seen cell phone photographs getting awards and there are many seminars and even college level photography classes on getting the most from a cell phone camera. DxoMark.com has added cell phone camera ratings to their well respected camera and lens testing database. There are more photographs and videos taken with cell phones than with any other type of camera. If a cell phone camera gives you what you need for the type of photography you do and how you display your work, use it. I use my cell phone when I don't have a dslr with me, but much prefer my dslrs. dslrs have a much larger dynamic range, ability to change perspective with zooms or different focal length primes, control of DOF, control white point, have a much larger shutter speed range to freeze motion or to blur it as desired, capture much more detail, and give me much more flexibility in Post Processing. What tool would you choose for wildlife / birding? Personally, I like the portraits I get with my D850 45.7mp camera with an 85mm f/1.8 and detail I get in landscapes using a 14-24mm f/2.8 wide angle zoom compared to the results I get with my 12mp iphone, which only gives me jpgs, so all the decisions are made for me by the person who programmed the PP software in the phone.
So what impact will a new iphone camera have on me - none. On the photography world in general, very little for enthusiasts and professionals.