If the new features are not compelling, then I will likely stay with my 11 Pro. I had an X, and skipped the Xs as the changes were not enough to compel me to upgrade.
I am all for camera improvements, but at some point, with my novice photography skills, you reach a point where what you have is good enough. I am more interested in improvements in connectivity, battery life, facial recognition, RAM management etc.
Now, having said all that, I am interested in the smaller 12. I carry my phone in a belt loop holster, and phones are getting so big that it's becoming unwieldy to wear a pouch on your belt that will hold these larger phones.
I don't like carrying a phone in my pocket, so i prefer a smaller size. The 5.8 iPhone is as large as I prefer to go, so hoping that the 5.4 inch model doesn't skimp on performance or battery life. If it came in a midnight blue that would just be icing on the cake 🙂