So basically, 99% of your IOS 12 hopes are pretty much Android features. Just dump the iPhone and get an Android Phone and enjoy all these benefits. My last iPhone was the 4S, since then i am totally sold on Android.
Files Navigation, D&D files. Hide-notch option.
"Old style" with a virtual home button.
The most important feature for me would be a notification bar on incoming calls while the phone is unlocked, instead the call screen occupies the whole UI which is super annoying if i am in the middle of doing something and dont want to reject the call. Its been on Android since lollipop. The reason i jailbreak my iphone is to use this feature which is very buggy. I would love a native implementation in the next ios release
Just fix the RAM management and the notifications center. That's it.
Bonus points if they add a dark mode.